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。
The forms of different auxiliary heat sources in the air conditioning system of water loop heat pump are introduced.
介绍了地表水水源热泵工程中两种常用的辅助热源形式，指出辅助热源的布置形式影响着系统运行的经济性。
The forms of different auxiliary heat sources in the air conditioning system of water loop heat pump are introduced.
介绍了地表水水源热泵工程中两种常用的辅助热源形式，指出辅助热源的布置形式影响着系统运行的经济性。
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