assist circulation造句

例句与造句

1. As engine power increased, increased flow was required and so engine-driven pumps were added to assist circulation.
2. The heating and hot water were worked from a central station, under the control of the resident engineer, and with rotary pumps to assist circulation.
3. "' ReliantHeart, Inc . "'is a left ventricular assist devices ( LVAD, or VAD ) which are used to assist circulation for failing hearts.
4. It's difficult to find assist circulation in a sentence. 用assist circulation造句挺难的