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全部话题 - 话题: treading
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p**********g
发帖数: 9558
1
来自主题: Living版 - 木地板,关于楼梯的tread一问
都是3/4 in厚,想把plywood和3.5 in宽的oak接起来做tread,oak那部分做edge
连接方式想着用
1. pocket hole
2. tongue and groove
板拼接好以后,用liquid nail粘到原来的楼板(tread)上
主要问题是
是不是方式1和2都可以,或者都不可以?最后强度会不会有问题?谢谢
w***y
发帖数: 493
2
来自主题: Automobile版 - "uneven tire tread wear"严重吗?
在walmart换机油时他们顺便检查了轮胎。 说2个前轮“uneven tire tread wear”。
请问这个问题好修么?
s**********d
发帖数: 36899
3
来自主题: Automobile版 - 如何check tire tread
TREAD.
不是
thread
w****0
发帖数: 803
4
discounttire 建议换3个新的,感觉是不是一起换四个更好?
是不是轮胎的tread到2的时候再换也行?
BR
发帖数: 4151
5
正面侧面交接部分磨损有点明显,但正面部分的tread 还可以,需要换吗?
最近有什么店换两个轮胎也有deal 的?
p**********g
发帖数: 9558
6
来自主题: Living版 - 木地板,关于楼梯的tread一问
不是不想买现成的楼板,是买不到(lowes or HD),现有的stair tread砍掉nose以后还有
11 inch宽
y****i
发帖数: 12114
7
来自主题: Living版 - 木地板,关于楼梯的tread一问
我觉得楼梯的tread受力不是特别大。
y****i
发帖数: 12114
8
来自主题: Living版 - 木地板,关于楼梯的tread一问
随便搜了搜,发现这个
http://www.slipnot.com/stair-tread-nosing-codes/
我的理解,11in depth的楼梯,要不要nosing都行。
p**********g
发帖数: 9558
9
来自主题: Living版 - 木地板,关于楼梯的tread一问
我的问题解决了,买了retro stair tread,然后用kreg pocket hole+(planed) red
ok接宽了,效果还是不错的
u****q
发帖数: 24345
10
来自主题: Living版 - 楼梯wood stair tread加宽
So far只见到贼吃肉。大块,大块的,流油的,肥肉。
Good job with the treads, btw.
d***n
发帖数: 993
11
来自主题: Living版 - 楼梯用地板拼还是买tread?
Tread没有缝要好看些吧,但是贵许多
不知道用地板拼楼梯的多吗? 效果差别大不大?
c********t
发帖数: 2276
12
No offense, but Kiffin not treading lightly
February 11, 2009 8:45 PM
Posted by ESPN.com's Chris Low
While the debate in the SEC rages as to whether Lane Kiffin is a breath of
fresh air or full of hot air, he's already managed one noteworthy
accomplishment in the annals of Tennessee football.
He and former Tennessee coach John Majors met on Wednesday, talked briefly
and were supposed to meet again in Kiffin's office at the Neyland-Thompson
Sports Center.
It's anybody's guess as to the last time
x**********3
发帖数: 1572
13
周六在tread mill上跑的, 注意distance
x**********3
发帖数: 1572
14
你可能没用过Tread Mill???
x**********3
发帖数: 1572
15
???
能有时间跑步的至少都是硕士, 难道这道题太难了?
时间: 247分钟
卡路里: 3244
距离: 26.25
速度: 4.0-5.0 哩/小时
AKA, 为了抵消连续PARTY多吃的东西, 我周六用龟速在Tread Mill上跑了个全马
o*******r
发帖数: 4921
16
哈哈,对啊,都至少是硕士。。。
347分钟?

???
能有时间跑步的至少都是硕士, 难道这道题太难了?
时间: 247分钟
卡路里: 3244
距离: 26.25
速度: 4.0-5.0 哩/小时
AKA, 为了抵消连续PARTY多吃的东西, 我周六用龟速在Tread Mill上跑了个全马
s********y
发帖数: 1670
17
想把自己很久之前的Nikon D40X Tread in 不知道哪一个网站比较好? 机器的状态还
比较好
没有镜头。配件齐全。
谢谢
同时想入70-200 VR II 怎么买放心,价优?
谢谢
a*****i
发帖数: 4391
18
>From today's Daily Yomiuri:
English: Bane or Blessing? / Schools treading new ground
Kayoko Redford and Midori Matsuzawa Daily Yomiuri Staff Writers
In a computer room at Demachi Middle School in Tonami, Toyama Prefecture,
about 40 second-year students were clearly having fun chatting in English on
their computer screens during the last 20 minutes of a morning class in
March.
The students typed out questions for their partners about their plans for
the weekend, their favorite sports or anything
l**********i
发帖数: 11748
19
去马路边捡一分钱先
然后
http://www.pepboys.com/tires/treadsmart/take_the_penny_test/
The Penny Test for Tires - How it works
Just take a penny, hold it vertically with Lincoln facing you and place the
dated section of the coin into several tread grooves across the tire. If
part of our 16th President’s head is always hidden by the tread, you have
more than 2/32" of tread depth remaining.
If you duplicate the process with a quarter and part of Washington’s head
is always hidden, then you have more than 4/32”... 阅读全帖
f********m
发帖数: 8397
20
来自主题: _Auto_Fans版 - Winter Tires: To Buy or Not to Buy?
http://www.bmwblog.com/2010/12/28/winter-tires-to-buy-or-not-to-buy/
Winter Tires: To Buy or Not to Buy?
Posted on: Dec 28th, 2010
Author: Shawn Molnar
Comments: 0
With winter upon us in many North American regions, we would like to
revive one of our previous articles on winter tires for your BMW or any
other vehicle. Our own road editor Shawn Molnar shares with us some of
his experience accumulated on the snowy Canadian roads.
Here is the answer.
The time is around 19:00 hours on a cold, bluste... 阅读全帖
g*********y
发帖数: 500
21
来自主题: Automobile版 - 后驱车及轮胎磨损
网上嗖地,结论是后轮侧滑更危险及难以纠正,所以好胎要放到后面。
Is it dangerous to put tires with the most tread on the front wheels? PDF
Print E-mail
Yes. It has been researched and doucumented that tires with the most tread
must go on the back of the vehicle to help maintain better control!
Note the tire safety information below, taken from car-accident-rain.com,
brought to you by The Brain Injury Law Group - No Charge Unless We Win.
Two Tires Done Wrong. New Tires must go on the Back.
The depth of tread on a tire ... 阅读全帖
f*****f
发帖数: 371
22
来自主题: _BayHandy版 - 楼梯 | 做室内楼梯Tutorial
还没做,学习中。房子没到手。
这个bbs没办法图文混排啊。又不能上传PDF.大家先将就看。又要的,我给你们PDF文件。
Step 1: Cut the Treads
Each tread will need to be slightly different in size. Measure each
tread
and cut it to size then install it using 2-1/4" trim screws.
Step 2: Install the Treads
Start at the bottom and work your way up the steps so that you can add
extra
screws into treads from the back of the riser above it. Space the holes
on
the treads evenly since the wood filler will be visible after the steps
are
finished.
Step 3: Brace the
t*******e
发帖数: 274
23
来自主题: JobHunting版 - F面经
电面那题,网上看到一种解法,这是正解么?
我有点不明白的是假如只有200bytes, 通过read4096之后是不是应该返回200(<4096)
作为结果?
public class read_4096_bytes {
public int read4096(char[] buf) {
return 4096;
}
public int read(int n, char[] buf) {
int totalRead = 0;
for (int i = 0; i < n / 4096; ++i) {
char[] tbuf = new char[4096];
int tRead = read4096(tbuf);
totalRead += copyTo(buf, totalRead, tbuf, tRead);
if (tRead < 4096) {
return totalRead;
... 阅读全帖
d***a
发帖数: 13752
24
除冬天之外,6/32足够了。多数州的法律要求是2/32必须换。
http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=51
"According to most states' laws, tires are legally worn out when they have
worn down to 2/32" of remaining tread depth."
"If rain and wet roads are a concern, you should consider replacing your
tires when they reach approximately 4/32" of remaining tread depth."
"If snow-covered roads are a concern, you should consider replacing your
tires when they reach approximately 6/32" of remaining tread depth to
... 阅读全帖
m****s
发帖数: 8992
25
来自主题: Automobile版 - TIPS FOR DRIVING IN THE RAIN
TIPS FOR DRIVING IN THE RAIN
Driving in the rain can be dangerous; in fact thousands of car accidents
each year are caused by wet driving conditions.
Routinely Check Your Tires
It is a good idea to always check your tires before you hit the road. To
ensure your tires are working at their best, make sure you do the following
routine maintenance:
Keep your tires properly inflated. The correct air pressure for your tires
is specified by the vehicle manufacturer and can be found on the vehicle
placa... 阅读全帖
s******0
发帖数: 477
26
来自主题: Automobile版 - 求高手意见on brake & tire
右前胎瘪了去toyota dealer那换胎及30,000mile保养。
最后换了右前胎,没有做dealer建议的以下项目:
1. perform mount & balance two tires $304.68
2. pad kit-front (w/hardware) (OEM) - replace & machine rotors $414.78
3. perform 4 wheel alignment special $94.83
Brake and Tire check:
Left Front:
brake lining 3mm, tire tread 4 32nds
Right Front:
brake lining 3mm, tire tread 0 32nds
Left Rear:
brake lining 4mm, tire tread 5 32nds
Right Rear:
brake lining 4mm, tire tread 6 32nds
大家觉得有必要做那些建议的项目吗,报的价格高不?多谢
q**j
发帖数: 10612
27
来自主题: Automobile版 - 丰田汉兰达怎么样~~
这个wiki来的。看起来是firestone想省钱,少了一个layer。这一招平常管用,但是碰
上ford的车设计本来容易roll over,就不行了。看来两方面都有问题。
The Ford Explorer was first offered for sale in March 1990. Ford internal do
cuments show the company engineers recommended changes to the vehicle design
after it rolled over in company tests prior to introduction, but other than
a few minor changes, the suspension and track width were not changed. Inste
ad, Ford, which sets the specifications for the manufacture of its tires, de
cided to remove air from the t... 阅读全帖
b******g
发帖数: 3883
28
买了个tread depth gauge量了一下tread还剩9/32", 用的是 Slime/Tire tread depth
gauge
http://www.autozone.com/autozone/accessories/Slime-Tire-tread-d
原厂新胎是10/32"
http://www.tirerack.com/tires/tires.jsp?tireMake=Yokohama&tireM
这样的新胎和旧胎直径就差1/32"x2 = 1/16"
应该不用都换吧
M******0
发帖数: 1280
29
来自主题: Automobile版 - 看雪开什么车去
This is the new law (need to meet one of the followings):
1) Snow tires with a minimum of 1/8” tread
2) All-weather tires with mud and snow (M/S) mark with 1/8” of tread
3) Four-wheel drive with 1/8” of tread
4) Traction devices (chains, auto-sock, etc.) for two drive tires
四驱with 1/8 inch tread (a relative new tire) is good enough.
The law suggests the AWD (without snow tires) and snow tires (without AWD)
are equivelant.

发帖数: 1
30
来自主题: Automobile版 - 什么时候换轮胎
googling "time to change tires"------
There are several popular ways to check your tire tread depth. One easy way
is the penny test. Simply insert a penny into your tire's tread groove with
Lincoln's head upside down and facing you. If you can see all of Lincoln's
head, your tread depth is less than 2/32 inch and it's time to replace your
tires.
Check Tire Tread Depth | Goodyear Auto Service Center
www.goodyearautoservice.com/content/content.jsp?pageName=TreadDepth
当然, 路況及个人驾驶习惯, 必须视作変数, 以作调整.
m*f
发帖数: 8162
31
来自主题: Living版 - Change stairs railing to wood
No, judging by what you have posted, this is not a DIY for you or your LD.
The material costs around $2000-$3000 with pre-milled tread returns (if you
buy oak treads, railings and newels but everything else pine. I don't think
you can use the existing treads under the carpet, they are probably just
pine...
It takes two people at least 5 days to finish the carpentry and painting job
. The labor cost really depends on where you live. If you want to do the
right job, you have to hire good carpen... 阅读全帖
s*****8
发帖数: 606
32
今天刚好看到书上说'why wider tires are better'(对于侧向力=过弯来说wider好)
抄一段原话,不是debate,仅供参考。 有点离题了,只是想分享下,希望op不介意
for the same vertical load and internal pressure, a tire with a wider tread
has a shorter, wider contact patch than a narrower tie. the area of both
contact patches is the same if the internal pressure and load are the same.
in the section on lateral tread deformation we showed that deformation
builds up along the length of the contact patch until the restoring force of
the tread and carcass exceeds... 阅读全帖
P**a
发帖数: 6
33

The purpose of directional tires is to expell water out of
the tread better. If you rotate the wheel along its radius
by 180 deg, and the tread pattern does not change, it's non-
directional tire. If the tread patterns on the inside and outside
are mirror image to each other, and you see triangle/arrow
shaped pattern pointing toward the wheel rotation direction,
the tire is directional. This is not the same as the directional
mark on the side wall. Some directional tires do not show the
mirror
y*******7
发帖数: 579
34
网络上看了很多关于这个网站的推介,http://www.gototrafficschool.com/
就注册去上课了,发现价格已经改了,是$19,
不过用promotion code (X2B-C8B-A94) 依然可以减少$2。
现在已经不能只是开着电脑耗时间了,我试着开机,但出去了3-4个小时,回来就要求
重新log in了。而且也不能直接参加final exam,必须答对各章的所有试题才能到达
final exam,而且各章的题目之后还有一题“security question”,就是问关于前面
学习材料中的图片、录像中的内容,所以还不得不点击看看,总共也需要不少时间。不
过有个节约时间的方法,就是先到问题的一页,看完问题再点击“previous”回到前一
页寻找答案,利用IE的“编辑”菜单下“查找(在当前页)”的功能可以快速定位。如
果中途log off再回来log in,得一页页翻过之前做过的章节,不过不需要重新做题就
是。到达上次退出地方,就自动加载之前这一章的内容。
欢迎大家使用promotion code:X2B-C8B-A94
http://www.gototraff... 阅读全帖
y*******7
发帖数: 579
35
网络上看了很多关于这个网站的推介,http://www.gototrafficschool.com/
就注册去上课了,发现价格已经改了,是$19,
不过用promotion code (X2B-C8B-A94) 依然可以减少$2。
现在已经不能只是开着电脑耗时间了,我试着开机,但出去了3-4个小时,回来就要求
重新log in了。而且也不能直接参加final exam,必须答对各章的所有试题才能到达
final exam,而且各章的题目之后还有一题“security question”,就是问关于前面
学习材料中的图片、录像中的内容,所以还不得不点击看看,总共也需要不少时间。不
过有个节约时间的方法,就是先到问题的一页,看完问题再点击“previous”回到前一
页寻找答案,利用IE的“编辑”菜单下“查找(在当前页)”的功能可以快速定位。如
果中途log off再回来log in,得一页页翻过之前做过的章节,不过不需要重新做题就
是。到达上次退出地方,就自动加载之前这一章的内容。
欢迎大家使用promotion code:X2B-C8B-A94
http://www.gototraff... 阅读全帖
j****0
发帖数: 799
36
应二楼要求就多说一点为啥买这个车
LE但是没有天窗
$36000+ttl
我们tread in了个 2006 ford freestyle $9000
现在去交钱啦~~
---------------------------------------俺是分割线---
首先说一下为啥买quest。。。
最后成交价成了27000我们觉得比较满意。首先vw的routan给我们$27000 Premium
after tread in 其实他们的package 要比Nissan 的好 最后我们没选他主要是三个个
原因
第一是 vw一共就签了5年合同今年是最后一年。以后routan还有没有继续的产品我不知
道。看样子不太可能有。如果没有这车的贬值速度会相当的快。
第二,大家都知道routan是克莱斯勒的车,一个克莱斯勒的车, vw的dealer给你修我
觉得不太靠谱。
第三,但是我去试车的时候这辆premium电池电量不足打不着火。这说明他们这车放在
那有一段时间了而且都没人看。当时那个dealer也比较牛逼,我说我听说现在有
11000off,我想问问能不能拿到11000off 他说他者不行。我... 阅读全帖
b**********y
发帖数: 7371
37
来自主题: Automobile版 - 大伙都啥程度换胎
A. 2/32 tread left
B. 4/32 tread left
C. 6/32 tread left
D. 不爽就换
E. 想换就换
F. 不想换也换
f****u
发帖数: 219
38
来自主题: Automobile版 - 一个Subaru的轮胎要275
OB owner manual上用的是"You must"。必须保证四轮是同样的size, circumference,
construction, manufacturer, band, tread pattern, degree of wear, speed
symbol and load index。否则不只是power train的问题,会影响操控和制动性能,换
句话说是安全隐患。刚去翻了翻yaris的owner manual,用词是"do not mix ... tread
pattern or tread wear",否则lead to fatal or injury accident。
i****x
发帖数: 17565
39
这个可以估算。随便贴一个轮胎指标,225/45/17,中型轿车典型尺寸:
225mm是宽度,45是侧壁占宽度45%,也就是约100mm,轮圈直径17英寸=430mm,轮胎总
直径630mm。
这个轮胎tread深度10/32英寸=8mm,而轮胎允许的最低tread是1.6mm。所以,轮胎新旧
之间直径差异最大大约是13mm。当然,轮胎打气程度也会影响直径,假设这个影响跟
tread程度是类似数量级,给它10mm的影响。合起来一共23mm,相对于630mm占0.37%。
在70mph的速度下,0.37%的影响等于0.26mph。也就是说,轮胎尺寸+打气程度合起来的
最大影响,仍然比速度表2-3mph的差异小一个数量级。
w****i
发帖数: 233
40
来自主题: Automobile版 - 弱人问轮胎warranty问题
一般轮胎都有30000~60000mile的warranty,是不是说:如果轮胎的remaining tread
depth小于或等于2/32in, 但是没有跑到这个warranty mile数,厂家或者销售商应该
refund一些credit啊?
还有这个2/32in 是不是应该是轮胎磨损最严重处的tread depth 而不是平均tread
depth?
谢谢牛人解答~!
x*****o
发帖数: 2505
41
自己搜了一下,这个算比较靠谱的说法:
With inconsistent outside diameters caused by different tire sizes, tread
patterns or tread depths an AWD computer’s readings will fluctuate. Various
wheels will receive inefficient or incorrect power loads. As a result the
drivetrain (computer, transmission and transfer case) must constantly
readjust, doing more work than necessary and eventually, may break down.
While replacing your tires in sets of fours will greatly reduce your risk of
problems, regularly rotating your tir... 阅读全帖
d***e
发帖数: 476
42
来自主题: Automobile版 - 请推荐换轮胎店
现在没有$80的胎吧
Is the Michelin Defender the Best Tire for You?
http://blog.tirerack.com/blog/docs-advice-on-tires/is-the-miche
Michelin has given the Defender an asymmetrical tread pattern to minimize
road noise. The Hydroedge's directional tread pattern was very efficient in
shedding water, but that kind of tread pattern always seems to create more
road noise
you'll have to do an H rated tire (or higher speed rating) for the Camry.
Best bet is the Premier AS. The Defender might yield a little bette... 阅读全帖
h*******s
发帖数: 616
43
来自主题: Automobile版 - Discount tires 得留点神
今天差点被 discount tires 忽悠了。分享出来,大家也留个心眼。
一年前在 discount tires 买了四个新轮胎,每个 $87,号称 85,000 mile warranty
。一直定期做 rotation/balance,开了大概 21,000 miles。最近发现 tread 只剩 3/
32 了。于是去 discount tire 换胎。
我问小二能拿回多少 credit,他说每个轮胎能拿回 $22 credit。我说不对吧,我开的
mileage 一半不到,$87 只能拿回 $22?他说这是电脑根据所剩下的 tread 算出来的
。我说“如果剩下 0 tread 呢?那是不是一分钱 credit 不给?”。他想了想,就给
了我每个轮胎 $43.5 的 credit。说我赚了,这是半买半送(50% off)。
当时赶着上班,就没跟他较真。回到公司,拿出计算器算了一下。85k warranty 我开
了 21k,那应该给我 75% 的 credit 啊。再打电话去问小二,他满口答应。
尼玛,看来给多少 credit 是随意的。不较真就吃亏了。
h*******s
发帖数: 616
44
来自主题: Automobile版 - Discount tires 得留点神
今天差点被 discount tires 忽悠了。分享出来,大家也留个心眼。
一年前在 discount tires 买了四个新轮胎,每个 $87,号称 85,000 mile warranty
。一直定期做 rotation/balance,开了大概 21,000 miles。最近发现 tread 只剩 3/
32 了。于是去 discount tire 换胎。
我问小二能拿回多少 credit,他说每个轮胎能拿回 $22 credit。我说不对吧,我开的
mileage 一半不到,$87 只能拿回 $22?他说这是电脑根据所剩下的 tread 算出来的
。我说“如果剩下 0 tread 呢?那是不是一分钱 credit 不给?”。他想了想,就给
了我每个轮胎 $43.5 的 credit。说我赚了,这是半买半送(50% off)。
当时赶着上班,就没跟他较真。回到公司,拿出计算器算了一下。85k warranty 我开
了 21k,那应该给我 75% 的 credit 啊。再打电话去问小二,他满口答应。
尼玛,看来给多少 credit 是随意的。不较真就吃亏了。
h*******s
发帖数: 616
45
去年买了个 Minivan,配是 Firestone FR710 的轮胎。
Minivan 的轮胎,磨损比较快,这是人所周知了。FR710 号称 65k miles warranty。
我去 dealer 做 15k-mile maintenance 的时候就说已经剩下 4/32 了(剩下 2/32 就
必须更换了)。
于是打电话给 Firestone 的客服,希望能拿点 store credit。他们说这种随车装配的
轮胎,不在他们 warranty 范围之内。扯皮了一阵子,又说让我开到他们的服务站(
Firestone Complete Auto Care)检查一下。
开过去之后,他们的 store manager 爱理不理的,估计这种 case 没什么油水,功夫
反而很多。给我量了 tread depth 之后让我回去等消息。
后来打电话说,我的 tread wear 磨损不均匀,要我做 alignment 才给 credit。我问
有多少 credit,他说大概 $300。
说实在话,如果 credit 是 $100 以下,我就直奔 Discount Tire 去了。在 Dis... 阅读全帖
H****G
发帖数: 666
46
有不同做法的,
tread+riser
tread+普通板子
stairnose+普通板子
用在材料上的钱多,装起来救省事点,但是还是费劲。俺家全tread+riser,12级楼梯
师傅装了一天半。
s*********t
发帖数: 16647
47
来自主题: Seattle版 - 西雅图用啥胎好?
update,晚上到家后,拿penny量了一下tread。。。
坑爹啊。。。毛估估tread明明至少还有5/12"...或以上,俺不是工科,这个测量可能
不准,不过离tread depth indicator还差老远。。。
粗看了一下几个轮子,比划了一下,至少没有明显的内外侧磨损不均(which doesn't
suggest alignment issue), 也没有明显的前轮后轮磨损不均(which doesn't
suggest rotation is not properly done)
看起来问题不大
估计是拿着promotion去要求做rotation,他们觉得没赚头。。就不做了。。。找个借
口忽悠俺
哎,下次还是老老实实去dealer那算了。。。
m******i
发帖数: 9479
48
☆─────────────────────────────────────☆
dash2000 (DASH) 于 (Thu Nov 8 14:39:09 2012, 美东) 提到:
偶来乱点一下。。。
boboli,不知道小家安顿的如何了,如果可行,申请吧。就算不当版主,板斧也可以啊
,帮帮新版主撒。
meimeiyi,偶私下和你说过,你考虑一下来申请吧。
獭獭!私信里说过了,偶非常看好你来做版主! 处理事情和交流方式上都是很成熟,
聪明的孩子就是好。
虎妈,反正你要跑步的反正你要在网上的,不如坐上版主,带领大家一起啊。那些
google doc和地图,和老刑愿意赞助的伪币,都不要浪费了,没啥太大的理由,这个有
氧活动不继续下去啊。你的性格很好很直率,做版主后,多控制自己情绪,最多不过自
己受气,也不能给别人气受。坚持原则上,你会做的很好的。
yager,有热情脾气好在家也是模仿老公,受得住老婆的气。你要不试试做3个月版主啊
,做了版主群众的眼睛会让你很容易一天不拉运动下去的,版主的位置也能让你看到更
多有趣的事情,其实是挺好的经历。
wuyan,你要不是已经是几个版的板... 阅读全帖
A*****e
发帖数: 138
49
来自主题: Ski版 - 4 wheel drive and snow chain
R-1: Chains or snow tread tires required. Snow tires must have a tread depth
of 6/32" with a "M & S" imprint on the tire's sidewall.
R-2: Chains required on all vehicles except four-wheel drives or all-wheel
drives with snow tread tires on all four wheels.
R-3: Chains required - ALL VEHICLES- no exceptions
R-1 and R-2 are the most common chain controls. The highway will often be
closed before an R-3 control is imposed.
C : Road Closed
H****w
发帖数: 1632
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来自主题: Swimming版 - 问两个小问题,关于仰泳和踩水
自由马,
Can you do survival float? This is important so you know you can stay
afloat with or without treading water. This will help you stay relax in
treading water.
http://www.mitbbs.com/article_t/Swimming/31178307.html
Next treading water:
http://www.youtube.com/watch?v=GvAd3s5869Y
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