mining height的例句大全

Generally speaking, the technical and economic indices of these faces are not as good as faces with a mining height of 3 meters.

总的说来大采高综采面的各项经济技术指标不如采高为3m左右的综采面。

Surrounding Rock Control Theory and Application Study of the Coal Face with Greater Mining Height

大采高采场围岩控制理论及应用研究

application of support with great mining height and study of its parameters

大采高支架的使用及参数研究

Simulation analysis on results of combined support applied to large cross-section withdrawal roadway in large mining height coalface

大采高工作面大断面回撤通道联合支护效果模拟分析

Talking about the cutting coal method at large mining height face

浅析大采高工作面的割煤方法

Influence of mining height of main roof on broken length The lime-stone rocks bed up against the coal.

采高对浅埋煤层老顶岩层破断距的影响石为岩层紧靠着煤矿层。

research on relationship of mining height and recovery of top-coal in full-mechanized caving mining

综放开采割煤高度与顶煤回收率相互关系研究

control and applied technology of inclination, mining height and dinting for fully mechanized caving mining face

综采工作面倾角与采高及挖底量的控制技术和应用

simulation of caving and fractured height in fully mechanized top-coal caving mining below thick alluvia and super thin bedrocks

厚松散层及超薄覆岩放顶煤开采冒裂高度模拟研究

Practice of gob-side entry at large height mining face

大采高工作面下巷沿空留巷实践

Based on it, 11# I beam for mining can be rolled by using the billet which has twice the height and these needs no trail rolling by using a pair of conjugate deep cut pass and box pass.

根据模拟结果，坯高／成品边高为2的坯料，使用一对共轭切深孔，翻钢后再用一对共轭箱形孔，可轧制出11＃矿工钢，无需重复试轧。

Design of Key Components of Hydraulic Roof Support Mining Total Height under "Three Soft" and Unstable Coal Seam

三软不稳定煤层一次采全高液压支架关键部件设计

Method: commonly-used indexes of physical development including body weight, body height, sitting height, head circumference, and chest circumference of a total of 657 preschool children in mining area were measured in Oct. 2002 and compared with the standard values of children at corresponding age.

方法：2002年10月对矿区657名学龄前儿童体格发育常用指标（体重、身高、坐高、头围、胸围）进行测量，并与标准值进行比较。

The height of the watering fissures is 21.5m because the height of caving zone is about 10m after the mining of all the 3 seam ( 4 layers), and the result basically accord to the result of theoretic calculating and numerical simulation;

3煤层全采后（4个分层）垮落带高度为10m左右，导水裂隙带的高度为21.5m，与理论计算和数值模拟结果基本一致；

The Coordinate Transformation Model of GPS and Mining Area Control Networks When Take thing Height Varying of Projection Surface into Account

顾及投影面高程变化时GPS网与矿区控制网的坐标转换模型

The law of movement and deformation and additional stress distribution of building in mining area is very complex because it has relationship with many factors such as the length, height, material, structure, stiffness, foundation coefficient and location of buildings.

受采动影响建筑物的移动变形和附加应力分布规律十分复杂，与建筑物的长度、高度、建筑材料、结构、刚度、地基性质、地下开采情况、建筑物所处的位置等多种因素有关。

shearer automatic drum height adjustment technology is the key technology to realize automation in comprehensive mechanized coal mining. it can improve the quality of raw coal and operation efficiency and security.

采煤机自动调高技术是实现综采工作面自动化采煤作业的关键技术，可提高原煤质量和作业安全性，能减轻劳动强度。

This process is called contour strip mining, as it follows the contours that connect points of the same height along a hillside.

这种方法称为山坡露天开采，因为这种开采是沿山坡的等高线进行的。

This paper introduces the state of the art and the development of thick seam mining techniques in details and the prominent achievements in top-coal caving and large cutting height workface in China.

详细介绍了我国厚煤层开采技术现状与发展历程，以及我国在放顶煤开采和大采高开采方面所取得的突出成绩。

Extra-thick coal seam mining ( one pass cutting coal mining) technology with large height is an important way to build high yield and high efficiency coal, and recover coal resources abundently.

特厚煤层大采高（一次采全高）回采是建设高产高效矿井、充分回收煤炭资源的重要手段。