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关注：1
2013-05-23 12:21
求翻译：定期对消防应急灯,灭火器和逃生箭头进行维护,并确保其有效性是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
定期对消防应急灯,灭火器和逃生箭头进行维护,并确保其有效性
问题补充： |
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2013-05-23 12:21:38
Regular fire emergency lights, fire extinguishers and escape the arrows to maintain and ensure its effectiveness
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2013-05-23 12:23:18
Regular fire emergency lighting, fire extinguishers and escape arrow buttons to preserve, and to ensure its effectiveness
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2013-05-23 12:24:58
Regularly to the fire emergency light, the fire extinguisher and escapes the arrow to carry on the maintenance, and guarantees its validity
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2013-05-23 12:26:38
Periodically fire emergency lighting, fire extinguishers and escape the arrows for maintenance, and ensure the effectiveness
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2013-05-23 12:28:18
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