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全部话题 - 话题: jwl
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n****7
发帖数: 8354
1
来自主题: Seattle版 - back from China sale
新棉被- New Cotton Comforter(inside and outside) - $70 (North Seattle)
http://seattle.craigslist.org/see/hsh/2059259614.html
新丝棉被- The New Silk Ouilt, PINK color - $300
http://seattle.craigslist.org/see/hsh/2059257082.html
New jewelry box, I got from factory in China, Great gift for Christmas, $50
http://seattle.craigslist.org/see/jwl/2053869317.html
A few New woman belts, I got from factory in China, Great gift for
Christmas, $10 each
http://seattle.craigslist.org/see/clo/2053862138.html
New Man ... 阅读全帖
S*********g
发帖数: 24893
2
【 以下文字转载自 Stock 讨论区 】
发信人: StephenKing (金博士), 信区: Stock
标 题: 市面上流通1358种电子货币,包括ByteCoin
发信站: BBS 未名空间站 (Fri Dec 15 00:59:47 2017, 美东)
# Name Symbol Market Cap Price Circulating Supply Volume (
24h) % 1h % 24h % 7d
1
Bitcoin BTC $290,617,804,480 $17,358.40 16,742,200 $15,
825,500,000 -0.36% 5.62% 3.15%
2
Ethereum ETH $63,827,563,522 $662.47 96,348,146 $3,723,
910,000 -0.48% -10.50% 52.62%
3
Bitc... 阅读全帖
f****3
发帖数: 502
l*******a
发帖数: 4
4
Moving sale of different furniture and appliances. If you are interested,
please contact l*****[email protected]. The pickup location is 16 Royce Rd, Allston
, MA 02134, near the cross of Commonwealth Ave/Harvard Ave.
Printer Sumsung CLP-300 $80: http://boston.craigslist.org/gbs/ele/3813286169.html
Printer Brother MFC-J265w, All-in-one (print, copy, scan, fax) $50: http://boston.craigslist.org/gbs/ele/3828255938.html
Airconditioner $45: http://boston.craigslist.org/gbs/app/3813291499.html.
Necklace and... 阅读全帖
s*******8
发帖数: 12734
5
来自主题: HiFi版 - ok,那我诚心请教,
说实话,很久以前的事情,我真的忘了。
rc什么振荡电路,有一个谐振点,有一个是固定的,用r,线圈的阻抗是变化的,用z,
还有些jwc,jwL的计算,我真的忘了,当时算过了。
S*********g
发帖数: 24893
6
【 以下文字转载自 Stock 讨论区 】
发信人: StephenKing (金博士), 信区: Stock
标 题: 市面上流通1358种电子货币,包括ByteCoin
发信站: BBS 未名空间站 (Fri Dec 15 00:59:47 2017, 美东)
# Name Symbol Market Cap Price Circulating Supply Volume (
24h) % 1h % 24h % 7d
1
Bitcoin BTC $290,617,804,480 $17,358.40 16,742,200 $15,
825,500,000 -0.36% 5.62% 3.15%
2
Ethereum ETH $63,827,563,522 $662.47 96,348,146 $3,723,
910,000 -0.48% -10.50% 52.62%
3
Bitc... 阅读全帖
S*********g
发帖数: 24893
7
# Name Symbol Market Cap Price Circulating Supply Volume (
24h) % 1h % 24h % 7d
1
Bitcoin BTC $290,617,804,480 $17,358.40 16,742,200 $15,
825,500,000 -0.36% 5.62% 3.15%
2
Ethereum ETH $63,827,563,522 $662.47 96,348,146 $3,723,
910,000 -0.48% -10.50% 52.62%
3
Bitcoin Cash BCH $29,779,262,625 $1,766.66 16,856,250 $2
,532,880,000 -1.05% -5.14% 21.33%
4
Ripple ... 阅读全帖
s********e
发帖数: 1898
8
来自主题: Minnesota版 - 本版名媛
发型,其次脸型,有点像吧
图太小五官都看不清。。。
是JWL阿姨么?
a***n
发帖数: 5520
9
来自主题: Minnesota版 - 本版名媛
谁是jwl
l******e
发帖数: 534
10
来自主题: Minnesota版 - 本版名媛
JWL我认识,不是像本版某ID吗?
h***3
发帖数: 424
11
来自主题: SanDiego版 - 全新女士手表转让$20.00
全新女士手表转让$20.00
http://sandiego.craigslist.org/csd/jwl/4842307698.html
请站内email 联系。
T*********0
发帖数: 4816
b***i
发帖数: 3043
13
来自主题: EE版 - 同轴电缆的趋附效应
突然想起来,如果电阻变大5倍,那么阻抗也变大,公式为
Z=sqrt((R+jWL)/jWC),那么,也会变大很多,衰减公式最后大概是exp(-0.45R/Z),那
么刚好可以抵消很大的电阻造成的损耗。
下周再继续做实验。现在已经根据电缆的阻抗构造了匹配的终端阻抗,一个电容加上电
阻。
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