An unlimited backup water supply, essential rawcoolingwater system (or called service water system) is supplied to the auxiliary feedwater system.
另一路的备用水来自原水系统(或称为厂用水)，当需要时可以不间断地向辅助给水系统供水。
2
Since the essential rawcoolingwater system supplies poor quality water, it is not used except in emergency when the condensate supply is unavailable.
由于原水系统的水质得不到保证，除非在凝结水不可用的紧急情况下才使用。
3
The RawCoolingWater system is non-essential system which is provides for removal of heat from turbine building loads, as well as some non-essential loads in the auxiliary building.