单词	metering pump,piston
释义	metering pump,piston 活塞式计量泵
随便看	the west wind The West wind is singing the west wing The west wing of the weapons lab.Got it The West Xia Dynasty the West Yunnan counterattack the West Zhou Dynasty the west ZhuZhiCi the wet the wet abrasive blasting machine The wet bar of soap slid from my hands The wet clothes will soon dry in the sun The wet grass sparkles in the sun the wetland the wetland in Kerqin the wetland nature reserve the wetland protection the wetlands in Zoige Plateau The Wet Season the wetted perimeter the wetting front The wet weather extended into September the wew of scientific development the wfitting of women the WFP