safe yield of stream

The method divides the whole volume of river water into four segments: environment water volume,safety water volume,risk water volume and disaster water volume.

河流水资源可划分为生态水量、安全水量、风险水量和灾害水量四部分,各部分水量由特定的流量来界定。

During the startup of a gas-steam combined cycle unit in some power plant,the overpressure of the MP economizer in the waste heat boiler resulted in the operation of the MP feedwater safety valve.

某厂燃气-蒸汽联合循环机组起动时,其余热锅炉中压省煤器压力过高,造成中压给水安全门动作。