变速泵 - 翻译variable speed pump常见释义英美词典：variable speed pump; variant pump例句：Though setting up the model to calibrating the level control parameter PID, the system dynamic performances is optimized in regulating the upper pool water level by variable speed pumps.建立了整定水位PID调节器的控制模型，优化变速泵控制前池水位变化系统的动态品质。