Constant displacement pump(定量泵) is a pump that moves a constant volume of fluid with each rotation(每次旋转时都要移动一个恒定体积的流体). For example, Gear pumps, vane pumps and so on.( )
A.When the pump turns each rotation, a constant displacement is moved by the constant displacement pump. B.Constant displacement pump is a pump that moves a constant volume of fluid with each rotation and the pump operates at the constant speed. C.Constant displacement pump moves a constant volume of fluid and provides a constant output pressure with each rotation.正确答案A
