他工作时，一个张力弹簧掉在了地上，他就看着弹簧在地板上滑动。
He dropped a tension spring he was working with and watched it slink away across the floor.
该中巢的内孔壁上设有限拉凸筋，张力弹簧抵靠该凸筋的下端。
The inner hole wall of the middle nest is provided with a draw limiting convex rib, and the tension spring contacts the lower end of the convex rib.
走马锭的组成部分：内芯管、定位肖、张力弹簧等所有核心配件均经过特殊超精密处理；
The gallop's structure: core pipe, located belt, strain spring. Exc. All the fitting are processed specially.
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