以上连杆、弹簧、皮球均放置在金属管内，套管固定在大梁两侧。
The above connecting bar springs rubber balls are all placed in metal tube casing pipes are fixed to supporting frame's two sides.
四连杆铰链气弹簧助力式开启机构是目前高档汽车特别是轿车上经常采用的一种结构。
Air spring booster type four bar linkage opening mechanism is a currently used common structure on high class automobile, especially on car.
本文采用附加扭转弹簧的方法对国内某一型号的喷气织机四连杆打纬机构进行动平衡优化，取得了良好的效果。
The method of add-on torsional spring is used in this paper to optimize the dynamical property of air-jet loom, and the good effect is achieved.
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