fore breast

用法例句

Research on Effect of Rockmass Joints and Fissures on Blasting in Tunneling and Its Practice;

岩体节理裂隙对巷道掘进爆破影响的研究与实践

Development of tunneling blasting expert system;

巷道掘进爆破专家系统研究开发

Application of the technique of pentagon hollow cutting-in in tunneling;

五角空心掏槽技术在巷道掘进中的应用

This paper numerically investigated the basic conditions and possibility of the secondary disaster in the coal mine caused by the mine fire in the laneway.

本文采用数值分析方法研究井下掘进巷道内火灾所导致的继发性灾害发生的条件。

Analysis of attenuation law and characteristic parameters in excavation roadway during gas explosion;

掘进巷道瓦斯爆炸衰减规律及特征参数分析

Dynamic mathematical model and numerical analysis of gas explosion in excavation roadway;

掘进巷道瓦斯爆炸动态数学模型及数值分析

With the combination of the physical model based on excavation roadway during gas explosion,the gaseous phase detonation parameters are deduced on the conditions of the known gas congestion position,volume and concentration.

结合所建立的掘进巷道瓦斯爆炸的物理模型,当已知瓦斯聚积位置、体积和浓度时,利用Hugoniot方程和Rayleigh方程推导出了瓦斯爆轰参数的公式。

Study on the Mechanism and Technology of Advanced Detection with Transient Electromagnetic Method for Roadway Drivage Face;

巷道掘进工作面瞬变电磁超前探测机理与技术研究

Technology of Supporting Super High Roadway in Large-height Mining Face

大采高工作面超高巷道掘进支护技术

Rapid Tunneling Technology for Semi-coal Rock Tunnel in Sitai Coal Mine

四台矿半煤岩巷道快速掘进工艺技术

Applying Continuous Mining Machine to Driving Mining Roadways in Fault Broken Zone

应用连采机在断层破碎带中掘进工作面巷道

Driving Construction Technology of Roadway under Watered Gob by Water Prospection and Dewater in Close Range

积水采空区下近距离巷道探放水掘进施工技术

MAIN TUNNEL ENGINEERING OF LIMESTONG MINERAL AREA OF XIALING IN NANJING DIGS INTO AND PROTECTS THE CONSTRUCTION TECHNIQUE

南靖下岭大理岩矿区主巷道工程掘进与支护施工技术

The Study of the Celerity Single Tunneling Technique of the Horizontal Tunnel in the Second Shizuishan Mining;

石嘴山二矿水平巷道单巷快速掘进技术研究

Smooth Surface Demolition in Rock Alley Driving the Importance for That Tunnel Becomes Shape

光面爆破在岩巷掘进时对巷道成形的重要性

As the drift in Tuoshan work area of Jinzhushan Coal Mine was flooded while drifting, it was needed to block the water by grouting.

金竹山煤矿托山工区巷道在掘进中被水淹没,需灌浆堵水;

Big Cross Section Crag Lane High-speed Driving Construction Organization and Craft

大断面岩巷快速掘进施工组织和工艺

Middle-Deep Bore Blasting Experimental Study on Hard Rock Tunnel Heading

硬岩巷道掘进的中深孔爆破试验研究

Outburst Prevention Technology Incoal Exposure in the Driving of the Open Seam Roadway

浅谈掘进穿煤层巷道的揭煤防突技术

Numerical Simulates Studying in roadway construction temperature field simulation

基于CFD技术的掘进巷道温度场模拟

To Open Up the Cave Tunnel Boring Cause of the Accident Analysis and Prevention and Control Measures

掘进巷道冒顶事故的原因及防治措施

Practices of Laneway Driving and Supporting in Unstable Terrane

不稳固岩层中的巷道掘进与支护实践

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

Application of FBG Sensors in Laneway Excavation

FBG传感器在巷道掘进中的应用研究

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