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关注：1
2013-05-23 12:21
求翻译：呼吸系统防护: 空气浓度超标时，佩戴自给过滤防毒面具（半面罩）.紧急事态抢救或撤离时使用空气呼吸器或氧气呼吸器是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
呼吸系统防护: 空气浓度超标时，佩戴自给过滤防毒面具（半面罩）.紧急事态抢救或撤离时使用空气呼吸器或氧气呼吸器
问题补充： |
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2013-05-23 12:21:38
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2013-05-23 12:23:18
respiratory protection: The air concentration exceeds the standards, wearing gas masks (self-contained filtration masks half an emergency rescue or evacuation). When breathing air or oxygen breathing apparatus
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2013-05-23 12:24:58
Respiratory system protection: When air concentration exceeding the allowed figure, wears is self-sufficient the filtration gas mask (half face guard). When urgent situation rescue either evacuation uses the air respirator or the oxygen respirator
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2013-05-23 12:26:38
Respiratory prevention: when air concentrations exceeding, wear a self-filtered gas mask (half mask). emergency rescue or evacuate air respirators or oxygen respirator
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2013-05-23 12:28:18
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