I helped Rimney get Val home from the hospital after the stroke, watched the two of them burst into tears at the sight of her mechanical bed.

当初薇尔中风之后，是我帮里穆尼把她从医院送回家的，我眼瞅着他俩一见到卧室里那张机械床就都哭了起来。

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Air or gas cylinder actuators include single or double acting, fail open or closed by mechanical spring or pneumatic force. They can be manufactured to accommodate any length stroke.

空气或燃气缸体执行机构包括单动或双动，由机械弹簧或气动力实现故障开启或关闭等各种类型。

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This technique eliminates the tube in conventional mechanical lifting, takes hollow rod as the transmission medium and oil flow channel and discharges fluid during down stroke.

该项工艺省去原机械举升中的油管，利用空心杆作为传动介质和油流通道，下冲程挤压排液。

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