driving up the pitch是什么意思

网络释义

用法例句

The application of directional controlled blasting in incline shaft sinking of a mine is introduced.

介绍在某矿山斜井掘进中 ,采用定向控制爆破技术 ,使石渣向后抛掷 ,以利于耙斗装岩机出渣 ,提高了工作效率 ,降低了工人的劳动强度。

The alternative choice and seamless transition of tapping situation during incline driving period

斜井掘进期出碴态势的比选及无缝转换

Computer application in mechanized slope tunneling

计算机在斜井机械化掘进中的应用

The said incline raise borer, developed by Changsha Institute of Mining Re-search for incline raise boring in dip onebody mining,is the first generation product in Chi-na.

为了解决倾斜矿体开采中斜天井掘进问题，我院新开发了我国第一代斜天井钻机产品。

long hole raising

深孔爆破法天井掘进

Improving Compensated Neutron Log Vertical Resolution Under Deviated and Horizontal Well Conditions and Its Application

斜井和水平井补偿中子测井分辨率改进及应用

Error Prediction of Inclined Shaft Anti-de-sac Run-through in Houzhuang Mine

侯庄矿水平斜井反掘贯通测量误差预计

Quick Roadway Excavation with Hoisting by Air-return Shaft

利用进回风立井改绞实现矿井快速掘进

Support Technology of Roadways Driving in Steep Middle Thick Coal Seam

急倾斜、中厚煤层巷道掘进支护技术

Transformation of Superficial Complex Section in Main Inclined Shaft of Yuejin Coal Mine

跃进煤矿主斜井浅表复杂地段的改造

Industry Test of Roadheader in Coal Mines

EBZ-160型掘进机井下工业性实验

Study on the maximal driving length of dummy drift in uranium mines

铀矿井独头巷道最大掘进长度的研究

REVIEW ON THE TUNNELLING TECHNIQUES APPLIED IN THE ACCESS-DAM HIGHWAY OF JINGGANGCHONG HYDROPOWER STATION,JINGGANGSHAN CITY

井岗山市井岗冲水电站进坝公路隧道掘进技术成果述评

Modification and Application of New Technology of DST with TCP Guns in Jihai 1× 1 Deviated Well

冀海1×1斜井测试联作新工艺的改进与应用

Improvement of Multi-level Upgraded Signal System of Tilted Double Hook Mine

倾斜井巷双钩多水平提升信号系统的改进

This paper briefly intro-duced the practice of longhole blast shaft-formirg method for blind shaft sinking in Tongshan Copper Mine.

本文简要介绍了深孔爆破成井法在铜山铜矿盲竖井掘进中的实践。

Probe into ventilation at long distance driving drift in high yield and high efficiency mine

对高产高效矿井长距离掘进巷道通风的探讨

The Accident Analysis of Raise Driring with Universal Method and Compilation Safety Checklist

普通法天井掘进的事故分析及安全检查表编制

Research of Dynamical Phenomena about Coal and Gas Outburst in Shaft Excavation;

立井掘进过程中的煤与瓦斯突出动力现象研究