![]() PHWR fuel element coating-measurement of thickness-beta backscatter method 重水堆核电厂燃料元件涂层厚度测量β射线背散射法 |
![]() Information technology - Procedures for achieving metadata registry content consistency - Part 1: Data elements 信息技术 实现元数据注册系统(MDR)内容一致性的规程 第1部分:数据元 |
![]() Low-voltage switchgear and controlgear - Part 5-4: Control circuit devices and switching elements - Methord of assessing the performance of low-energy contacts - Special tests 低压开关设备和控制设备 第5-4部分:控制电路电器和开关元件 小容量触头的性能评定方法 特殊试验 |
![]() Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching element - Proximtiy switches 低压开关设备和控制设备 第5-2部分:控制电路电器和开关元件 接近开关 |
![]() Low-voltage switchgear and controlgear - Part 5-1:Control circuit devices and switching element - Electromechanical control circuit devices 低压开关设备和控制设备 第5-1部分:控制电路电器和开关元件 机电式控制电路电器 |
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