滑行器，一种汽车或者摩托车上的节油装置。
滑行器上部有五条“T”形槽，可用螺钉和螺帽方便地在槽上固定光电门。
There are five is the taxi "T" type screw groove, usable and nuts in filigree conveniently fixed photoelectric door.
试验结果表明，QH 4型汽车节能滑行器对各种车型、道路条件都具有显著的节油效果。
The testing results proved that the QH4 saving energy coasting device has a remarkable fuel-saving effect to any model of motor vehicles and at any road condition.
下面的两条“T”形槽的中心正好通过滑行器的质心，在这两条槽的两端安装碰撞器或挂钩，可使滑行器在运动过程中所受外力通过质心。
Below the "t" type two slot glide through the center was the center of the two slot in collision or hook at installation, can make the slide in athletic process by external through mass.
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