variable-displacement pump造句

• Servo dynamics analysis of a4vg series variable - displacement pumps
  系列变量泵伺服机构动态特性分析
• It can be seen from the model that the two valve - controlled motors would be coupled with each other if the characteristic of variable - displacement pump is taken into account
  由该模型可以看出，在考虑变数泵特性的条件下， 2个阀控马达是相互耦合的。