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关注：1
2013-05-23 12:21
求翻译：Pockets and flanges of sheaves used with hoist chains must be designed so that the chain does not catch or bind during operation.是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
Pockets and flanges of sheaves used with hoist chains must be designed so that the chain does not catch or bind during operation.
问题补充： |
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