泵船 meaning in English

floating pumping station
pontoon

So far , most pump machines in ships are not taken action . when the level is high , pumps still work in high distance , which have the energy wasted
目前，国内绝大多数的泵船上的水泵机组未采取措施，电机的输出功率是恒定的。
At the same time , a lot of electrical energy is wasted when the level is high and the working curve is displaced . so urgent affairs are choosing right timing ways to rebuild the pumps . applying frequency conversion timing to wind machines and pumps is an important technology in our country
设计都按照长江、汉水百年一遇最低水位选择水泵出水扬程，这样在高水位时往往由于扬程太大而偏离水泵的工作高效区，浪费了大量电能，选择合适的调速方式对泵船水泵机组进行节能改造，成为当务之急。