reciprocation
短语词组
- reciprocation force 往复力
- tubing reciprocation 油管上下运动
- reciprocation cycle 往复运动循环
- reciprocation motion 往复运动;往复运动副
- reactive reciprocation 一种反应式的回报
- reciprocation tube 伸缩套管
- screw reciprocation 螺杆往复
- workstring reciprocation 工作管柱上下往复运动
- reciprocation mass 往复质量 返回 reciprocation