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关注：1
2013-05-23 12:21
求翻译：在封闭空间内使用二氧化碳或氮气进行焊接作业时，必须在作业过程中通风换气，确保空气符合安全要求。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
在封闭空间内使用二氧化碳或氮气进行焊接作业时，必须在作业过程中通风换气，确保空气符合安全要求。
问题补充： |
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2013-05-23 12:21:38
In confined spaces or nitrogen dioxide welding operations must be in the job process ventilation to ensure air safety requirements.
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2013-05-23 12:23:18
In a closed space within 2 use carbon dioxide or nitrogen gas welding operations carried out in the process, it is important to the operation air ventilation, to ensure compliance with safety requirements.
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2013-05-23 12:24:58
Uses when the seal space the carbon dioxide or the nitrogen carry on the welding work, must in the work process ventilate the air change, guarantees the air to conform to the safety requirements.
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2013-05-23 12:26:38
Use carbon dioxide or nitrogen inside the enclosed space when conducting welding operations, must be in the operating process of ventilation to ensure air safety requirements are met.
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2013-05-23 12:28:18
Use carbon dioxide or nitrogen inside the enclosed space when conducting welding operations, must be in the operating process of ventilation to ensure air safety requirements are met.
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