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关注：1
2013-05-23 12:21
求翻译：因故停钻时，孔口应护盖，严禁钻锥留在孔内，以防埋钻；是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
因故停钻时，孔口应护盖，严禁钻锥留在孔内，以防埋钻；
问题补充： |
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2013-05-23 12:21:38
Reason to stop drilling, the holes should cover, non-cone drill to stay in the hole, to prevent underground drilling;
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2013-05-23 12:23:18
正在翻译，请等待...
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2013-05-23 12:24:58
When stops drilling for some reason, the manhole should the protecting cover, forbid strictly drilling the awl to keep in the hole, guards against buries drills;
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2013-05-23 12:26:38
Stop drilling time, orifice should cover, drilling cone is strictly prohibited to stay in holes in the case of bury drills;
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2013-05-23 12:28:18
Reason to stop drilling, the holes should cover, non-cone drill to stay in the hole, to prevent underground drilling;
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