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[国外标准] IEC 60999-1-1999 Connecting devices Electrical copper conductors Safety requirements for screw-type and screwless-type clamping units Part 1

liufanfei

P:2012-09-06 20:27:00

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IEC 60999-1-1999 Connecting devices Electrical copper conductors Safety requirements for screw-type and screwless-type clamping units Part 1.pdf

contactless(digital)measuring system - 非接触测量系统,非接触数字测量系统 （0） 投诉

jeremyho88

P:2016-08-03 21:25:00

2

谢谢

taut - (绳子)拉紧的, 整洁的, 紧张的 （0） 投诉

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