... drillship, drilling ship 浮式钻井船 driven welding roller 被动转胎 driving roller and control box 主动转胎及控箱 ...
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driven welding roller
从动焊辊
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The driving wheel and the driven wheel welding roller frame each have two wheels, the wheel of metal material, so it can greatly improve the bearing capacity of the welding roller frame.
焊接滚轮架的主动轮与从动轮上各有两只滚轮，选用金属材质的滚轮，这样就可以大大提高本焊接滚轮架的承载能力。
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