Railway applications - Electric equipment for rolling stock - Part 4: electrotechnical components - Rules for AC circuit - breakers.

铁路设施.机车车辆用电气设备.第4部分: 电工元件. 交流断路器规则.

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ISO collaborates closely with the International Electrotechnical Commission ( IEC ) on all matters of Electrotechnical standardization.

ISO与国际电工委员会 ( IEC ) 在电工技术标准化方面保持密切合作的关系.

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ISO collaborates closely with the International Electrotechnical Commission ( IEC ) on all matters of electrotechnical standardization.

ISO与国际电工委员会 ( iec ) 在电工技术标准化方面保持紧密的合作关系.

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Railway applications - Electric equipment for rolling stock - Part 3: Electrotechnical components; Rules for d . c. circuit - breakers.

铁路设施.机车车辆用电气设备. 第3部分: 电工元件. 直流断路器规则.

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This paper introduces software phase locking, its features, design skill, and application in electrotechnical measuring instrument.

本文介绍软件锁相的特点 、 设计技巧及其在电工测量仪表中的应用.

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International standardization began in the electrotechnical field: the International Electrotechnical Commission ( IEC ) was established in 1906.

国际标准化开始只是在电工领域.国际电工委员会成立于1906年.

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The South African Bureau of Standards ( SABS ) is affiliated to the International Electrotechnical Commission, ( IEC ).

南非标准局 ( SABS ) 是国际电工委员会 ( IEC ) 的附属机构.

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