circulation pump的用法和样例：
例句
- As soon as the level of the holding tank reaches the low level switch, the mixer and the lime milk circulation pumps will be interlocked.
当贮槽液面达到低位开关时，搅拌器和石灰乳循环泵将互锁。 - Through experiments, the double pump operation mode was compared with the single pump operation mode under different temperatures and different loads.
通过试验阐述循环水泵在不同温度和机组负荷下进行双循环泵运行改单循环泵运行的比较。
