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关注：1
2013-05-23 12:21
求翻译：1.为确保施工安全，在揭煤前必须验证煤和瓦斯是否存在突出的危险性。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
1.为确保施工安全，在揭煤前必须验证煤和瓦斯是否存在突出的危险性。
问题补充： |
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2013-05-23 12:21:38
1 To ensure construction safety, exposing the coal in the coal and gas must be verified before the existence of outstanding risk.
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2013-05-23 12:23:18
1. In order to ensure the safety of construction mortgage coal, coal and gas whether former must verify that highlight the danger exists.
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2013-05-23 12:24:58
1. for guarantees the construction security, in uncovers in front of the coal to have to confirm the coal and the gas whether has the prominent risk.
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2013-05-23 12:26:38
1. to ensure the safety of construction, in front of the coal must verify the existence of coal and gas outburst danger.
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2013-05-23 12:28:18
1 To ensure construction safety, exposing the coal in the coal and gas must be verified before the existence of outstanding risk.
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