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关注：1
2013-05-23 12:21
求翻译：因此，有必要对工程机械的维修和养护进行深刻的探讨，不断的提高工程机械效果和效益。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
因此，有必要对工程机械的维修和养护进行深刻的探讨，不断的提高工程机械效果和效益。
问题补充： |
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2013-05-23 12:21:38
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2013-05-23 12:23:18
Therefore, it is necessary to carry out engineering machinery maintenance and conservation of the deep, and continually explore the effectiveness and efficiency of construction machinery.
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2013-05-23 12:24:58
Therefore, it is necessary carries on the profound discussion to the project machinery service and the maintenance, unceasing enhances the project mechanical effect and the benefit.
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2013-05-23 12:26:38
Therefore, it is necessary to construction machinery repair and maintenance of deep discussion, to constantly improve effectiveness and efficiency of construction machinery.
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2013-05-23 12:28:18
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