auxiliary safety device

基本解释

Charging test and safety valve and automatic device adjusting for main compressor( auxiliary compressor).
主（）气压缩机的充气试验、全阀和自动装置的调整。
Charging test and safety valve and automatic device adjusting for main compressor (auxiliary compressor).
主（辅）空气压缩机的充气试验、安全阀和自动装置的调整。
The safety valve of grade 2 and 3 auxiliary system is the protective device against the overpressure in the auxiliary system of the first loop.
核2，3级辅助系统安全阀是核电站----回路辅助系统的超压保护装置。
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