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1·On-demand pumps have a pressure switch that makes the pump build up pressure in the fresh water line.

按需水泵有一个压力开关，使泵在淡水输送线上产生压力。

2·Adjust the fresh water in the peak tank. Pump the fresh water from the fore peak tank into the aft. Then we needn't make any alterations on the cargo plan.

调整一下尖舱里的淡水，把淡水从首尖舱抽到尾尖舱，这样我们就不用在积载图上做修改了。

3·Applies the heat pump driven liquid desiccant fresh air handling unit to treat fresh air, ground source heat pump to provide cooling, heating and domestic hot water.

采用高效热泵式溶液调湿机组处理新风，地源热泵机组供冷、供热、供生活热水。