reverse box detent spring 换向箱卡销弹簧
transmission detent spring 变速箱卡销弹簧
mechanical transmission detent spring 机械式变速器卡销弹簧
spring detent 弹簧擒纵器
detent ball and spring 毁灭地球的
spring detent escapement 锁簧式天文钟擒纵机构
no spring detent 无弹簧制动
spring loaded detent 装有弹簧的锁销
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