GB/T 20994-2007
Shunt capacitors and AC filter capacitors for HVDC transmission systems 高压直流输电系统用并联电容器及交流滤波电容器 |
GB/T 18802.331-2007
Components for low-voltage surge protective devices - Part 331: Secification for metal oxide varistors(MOV) 低压电涌保护器元件 第331部分:金属氧化物压敏电阻(MOV)规范 |
GB/T 13606-2007
Instrument for geotechnical engineering - General specifications of vibrating wire sensor 土工试验仪器 岩土工程仪器 振弦式传感器通用技术条件 |
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