... thread opener 开线机 thread polishing 纱线抛光 thread polishing machine 纱线抛光机 ...
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thread polishing machine 纱线上光机 ; 纱线抛光机
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The other components of the case such as the rotating bezel also require a hand finish, particularly for drilling the screw thread and polishing.
表壳的其它部件，如旋转表圈等，同样须用人手处理，特别是钻螺丝内牙和抛光。
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