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關注：1
2013-05-23 12:21
求翻譯：在坑、溝、井內挖掘施工時，必須保證通風良好。如發現有毒氣體或氧氣不足時，應停止作業，采取有效措施后，方可繼續施工。是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
在坑、溝、井內挖掘施工時，必須保證通風良好。如發現有毒氣體或氧氣不足時，應停止作業，采取有效措施后，方可繼續施工。
問題補充： |
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2013-05-23 12:21:38
Pits, trenches, wells tap the construction must be well ventilated. Such as the discovery of toxic gases or oxygen deficient, they should stop the operation, and take effective measures before they are allowed to continue with the work.
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2013-05-23 12:23:18
In pits, trenches, pits excavations is necessary to ensure that good ventilation. If discovery of toxic gases or lack of oxygen, should be put out of operation, and to take effective measures to continue after the construction.
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2013-05-23 12:24:58
When the pit, the ditch, the well excavate the construction, must guarantee ventilates good.If discovered when virulent gas or oxygen insufficiency, should stop the work, after takes the effective action, only then continues to construct.
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2013-05-23 12:26:38
When construction of mining in the pit, ditch, well, you must provide proper airflow. If the toxic gases or oxygen is low, should stop the job and take effective measures, to continue construction.
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2013-05-23 12:28:18
We keep the city clean is paramount
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