once-through operation

• 一次操作,单循环,一次运算,非循环操作

once-through operation的用法和样例：

例句

1. 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。