套帽
... 安全帽帽套 safety hat covering 套帽 cover nut 螺丝套帽接头 joint coupling ...
阀盖螺母
... 阀盖螺丝 Cap screw 阀盖螺母 cover nut 密封垫 Gasket ...
螺母
... cover note ==> 保险证明 cover nut ==> 螺母 cover of a set of dependencies ==> 从属集的覆盖 ...
螺帽母
英汉日科技词汇——C3 ... covellite ==> 铜蓝 cover (cap) nut ==> 螺帽母 cover aggregate ==> 盖面集料 ...