circulating pump

常见例句

This paper states the method of selecting and using circulating pump in hot water heating system properly to save electric energy.
合理的选择和使用热水供暖系统循环水泵，以达到节约电能的目的。
Puts forward a scheme of energy efficiency innovation by adding a frequency converter to the original constant flow secondary circulating pump.
对水泵系统进行了节能改造，在原有的定流量二次循环泵上增设变频器。
There were some new problems such as the easy exhaustion of the liquid ammonia circulating pump and the appearance of liquid ammonia product was off specification.
目前存在氨液循环泵易抽空、液氨产品外观不合格（颜色发红）、液氨外送泵密封泄漏等问题。