立井井筒,又称竖井,为直接与地 面相通的直立巷道。专门或主要用于提升煤炭的叫做主井。
立井井筒管路安装质量控制 - xzbu.com 中国论文网 关键词:立井井筒;管路;安装;控制 [gap=282]Keywords: vertical shaft; Line; Installation; control
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...井筒快速施工技术_理论研究_中国煤矿安全网 关键词:立井井筒;全深冻结;中深孔爆破;机械配套;快速施工 [gap=750]Keywords:shaft;deep freezing;deep-hole blasting;assorted mechanization;rapid construction ..
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The problems of the signal transmission in a shaft have not been solved because the transmission environment is very bad.
煤矿立井井筒的信号传输,由于其传输环境特殊,一直没有很好地解决。
参考来源 - 最小频移键控调制的特殊应用 The Special Application of Minimum Shift Keying Modulation·2,447,543篇论文数据,部分数据来源于NoteExpress
本文介绍在立井井筒施工中质量控制方面的一些情况。
The original introduced some respects of the quality control in shaft pit shaft building.
煤矿立井井筒的信号传输,由于其传输环境特殊,一直没有很好地解决。
The problems of the signal transmission in a shaft have not been solved because the transmission environment is very bad.
在立井井筒施工中,采取中深孔爆破施工方法,是立井快速施工的有效途径。
In shaft construction, using the method of middle-deep hole explosion can fast and effective build shaft.
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