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关注：1
2013-05-23 12:21
求翻译：各关节部位均采用无油润滑系统，免维护，对销轴起到良好的保护作用。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
各关节部位均采用无油润滑系统，免维护，对销轴起到良好的保护作用。
问题补充： |
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2013-05-23 12:21:38
Joints are used without oil lubrication systems, maintenance-free, to play a good protective effect on the pin.
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2013-05-23 12:23:18
The joints are lubricated with oil-free, maintenance-free system, the Pin-up to a good protection.
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2013-05-23 12:24:58
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2013-05-23 12:26:38
The joints are made of oil-free lubrication systems, maintenance-free, a good protective effect on the PIN.
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2013-05-23 12:28:18
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