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关注:1
2013-05-23 12:21
求翻译:辅助巷、水力冲孔及超前管棚注浆在石门揭过突出煤层中的应用是什么意思?![]() ![]() 辅助巷、水力冲孔及超前管棚注浆在石门揭过突出煤层中的应用
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2013-05-23 12:21:38
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2013-05-23 12:23:18
Auxiliary Hydraulic punch holes in the alley, and lead managed scaffolding note in the highlighted the seam of the Shihmen mortgage applications
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2013-05-23 12:24:58
The auxiliary lane, the water power punch holes and manage the awning note thick liquid to uncover in the prominent coal bed application in advance in Shimen
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2013-05-23 12:26:38
Auxiliary lanes, hydraulic flushing and lead pipe Grouting in the application of the exposing outburst seams in a crosscut
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2013-05-23 12:28:18
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