1.
The effects of different drawing interval and top-coal fragmental size on flow character of coal-gangue and sand, and on mixed degree of coal and gangue were analyzed during drawing top-coal.
分析了不同放煤步距、顶煤块度对放煤过程中煤矸砂流动形态、混矸程度的影响。
2.
Top Coal Crushing Mechanism and Determination of Roof Caving Height in Roof Caving Workface
放顶煤工作面顶煤破碎机理及放煤高度的确定
3.
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
4.
May be used in iced coal or lump coal with a certain thickness.
能用于对一定厚度的冻煤或大块煤采样。
5.
DEGRADATION CHARACTERISTICS OF CENTRAL QUEENSLAND COAL
中央昆士兰煤的块度碎细特性(英文)
6.
Research on Relationship of Top-coal Recovery Ratio and Height of Immediate Roof with PFC Numerical Simulation
顶煤回收率与直接顶厚度关系的PFC数值模拟研究
7.
Application of the high density electrical prospecting to rich water survey of downhole coal plate.
高密度电法探测井下煤层顶板富水性效果
8.
Determination of Critical Thickness of Stiff Roof in Coal Mine Based on Thick Plate Theory
基于厚板理论的水平煤层顶板临界厚度的分析
9.
Analysis of Coplanar Degree for Top Surface of Upper Wedge on Passline Adjestment Device
轧制线调整装置上楔块顶面同面度分析
10.
The select principle of drawing interval was given for different coal-gangue fragmental size.
给出了不同煤矸块度条件下的放煤步距选取原则。
11.
Study on Neural Network for the Recognition of Blast Furnace Top Gas Temperature Distribution;
高炉炉顶煤气温度分布模式识别神经元网络的研究
12.
Application of Wavelet Analysis on Elastic Wave Signal Process Detecting Thickness of Top Coal;
小波分析在弹性波顶煤厚度探测信号处理中的应用
13.
Analysis the height of water conducted zone of coal seam roof based on GA-SVR
基于遗传-支持向量机法的煤层顶板导水断裂带高度的分析
14.
Prediction of Water-flowing Fractured Zone's Height in Roof of Coal Based on Neural Networks Trained by Particle Swarm Optimization
基于粒子群优化神经网络的煤层顶板导水裂隙带高度预测研究
15.
A Discussion on Coal Seam Stability Quantitative Evaluation and Resource Reserve Estimation Block Division
煤层稳定程度的定量评价及资源储量块段划分问题探讨
16.
Study on Top Coal Caving of Horizontal Section Top Caving in Steep Seam;
急倾斜水平分段放顶煤顶煤放出规律研究
17.
The Three-dimensional Visualization Simulation of Top-coal Movement Regulation on the Base of OpenGL;
基于OpenGL放顶煤顶煤运动规律的三维可视化仿真
18.
complete(a building)by adding the highest stone,etc
（用石块等）给（建筑物）封顶.