| 文件名 | 文件大小 | 上传时间 | |||
GBT 5013.8-2013 额定电压4...
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276.6 K | 2022-10-21 | |||
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GBT 5008.2-2013 起动用铅...
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570.2 K | 2022-10-21 | |||
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GBT 5008.1-2013 起动用铅...
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1.9 M | 2022-10-21 | |||
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GBT 4997-2008 永磁式低速...
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420.1 K | 2022-10-21 | |||
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GBT 4997-1993 永磁式低速...
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596.5 K | 2022-10-21 | |||
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GBT 4797.8-2008 电工电子...
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2.0 M | 2022-10-21 | |||
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GBT 4797.7-2008 电工电子...
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1.5 M | 2022-10-21 | |||
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GBT 4797.5-2008 电工电子...
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247.2 K | 2022-10-21 | |||
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GBT 4207-2012 固体绝缘材...
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515.1 K | 2022-10-21 | |||
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GBT 4012-2013 2.6／9.5mm 同...
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427.0 K | 2022-10-21 | |||
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GBT 4011-2013 1.2／4.4mm 同...
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631.0 K | 2022-10-21 | |||
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GBT 3930-1983 测量电阻用...
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542.9 K | 2022-10-21 | |||
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GBT 3929-1983 标准电池.pd...
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373.5 K | 2022-10-21 | |||
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GBT 3928-1983 直流电阻分...
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539.6 K | 2022-10-21 | |||
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GBT 3927-1983 直流电位差...
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663.1 K | 2022-10-21 | |||
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GBT 3925-1983 2.0级交流电...
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602.4 K | 2022-10-21 | |||
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GBT 3859.3-2013 半导体变...
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592.0 K | 2022-10-21 | |||
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GBT 3428-2012 架空绞线用...
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566.3 K | 2022-10-21 | |||
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GBT 2951.38-1986 电线电缆...
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278.2 K | 2022-10-21 | |||
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GBT 2900.90-2012 电工术语...
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889.0 K | 2022-10-21 | |||