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关注：1
2013-05-23 12:21
求翻译：每掘进50m由地测人员对所放中线、腰线校核一次。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
每掘进50m由地测人员对所放中线、腰线校核一次。
问题补充： |
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2013-05-23 12:21:38
50m from the ground and measured every boring person put on the center line, waist checking again.
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2013-05-23 12:23:18
Each boring 50 m from the ground and the detection of personnel on centerline, waist-line verification.
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2013-05-23 12:24:58
Each tunneling 50m to puts the median line, the waist line by the surveying personnel examines one time.
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2013-05-23 12:26:38
Each excavation 50m geological survey staff on the centerline, waist line check at a time.
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2013-05-23 12:28:18
正在翻译，请等待...
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