词典释义：
扭力弹簧
Interested in selling torsion spring, compression spring.
本公司正在供应拉力弹簧, 压缩弹簧等.
In this paper, the application and the mechanism principle of torsion spring overrun clutch are introduced.
介绍了扭簧式超越离合器的应用和机构原理.
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