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关注：1
2013-05-23 12:21
求翻译：滑轮是一个便于人劳动的机械工具，但是它存在很多的不安全因素。也常常引发身边的事故。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
滑轮是一个便于人劳动的机械工具，但是它存在很多的不安全因素。也常常引发身边的事故。
问题补充： |
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2013-05-23 12:21:38
Pulley is an easy labor of the machine tools, but there are a lot of insecurity. Often lead to close incidents.
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2013-05-23 12:23:18
Pulley is a user-friendly' labor the machine tool, but it did not exist a lot of insecurity. The accident also often trigger around them.
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2013-05-23 12:24:58
The pulley is one the machine tools which is advantageous for the human to work, but it has very many safety factors.Also initiates side accident frequently.
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2013-05-23 12:26:38
Pulley is an easy to machine tools of human labor, but it has a lot of insecurity. Accidents are often thrown around.
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2013-05-23 12:28:18
Pulley one mechanical tool that convenient people work, but it have a lot of safety factor. Often initiate the accident around too.
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