elastic spring back 弹性回弹
elastic spring-back theory 弹性回弹理论
Spring elastic ring 弹性钢丝挡圈
Spring-elastic properties 弹簧弹性特性
elastic clutch spring clutch 弹性离合器
six-spring elastic support 六弹簧弹性支承
elastic coefficient of spring 弹簧劲度系数
cross-leaf spring elastic bearing 十字片簧弹性支承
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