Ref . plant to be done protection device test and cooling - down test 冷藏机组保护装置试验及打冷试验。
2.
The key performance parameters are gotten through treating and analyzing the data getting from the cryopump cool - down test 通过对低温泵降温过程中相关数据的处理与分析，获取了低温泵的各项关键性能参数。
