coalface

过去式：

动词过去式: coalesced

更多词形：

形容词: coalescent | 名词: coalescence | 动词过去式: coalesced | 动词过去分词: coalesced | 动词现在分词: coalescing | 动词第三人称单数: coalesces |

单词例句：

Far from being irritated by this, I sense that perhaps Rosicky is just happy not to have been thrown immediately back to the coalface.

它不仅不对受伤感到恼怒，相反我觉得他可能很高兴不用立即被扔到球场上去。

Keywords comprehensive mechanization caving coalface,coal pillar entry retaining,numeric simulation,coal pillar width,bolt-mesh support,underground pressure observation;

关键词综放工作面;煤柱留巷;数值模拟;煤柱宽度;锚网支护;矿压观测;

Through analyzing Principal Component Analysis(PCA) and Gene Expression Programming(GEP),a novel GEP Algorithm based on PCA is proposed and applied to predict the amount of gas emitted from coalface.

在研究主成分分析和基因表达式程序设计的基础上,提出一种基于主成分分析的基因表达式程序设计新算法,并将其用于采煤工作面瓦斯涌出量的预测。

Keywords fully mechanized coalface;big power;application;

综采工作面;大功率;应用;

Simulation and Analyses of a Shearer Vibration in the Coalface Advance

采煤机沿工作面推进方向振动的模拟研究

The position and state of the main roof above the terminal line of the coalface nearby the rises affect the magnitude of the peak abutment pressure and the difficult extent of the rise maintenance.

上山附近终采线上方老顶岩层的位态影响着煤柱支承压力的大小和上山维护的难易程度。因此,工作面终采线的位置,应尽可能确定在老顶岩层周期来压完成之后。

Aimed at the difficulties of traditional techniques for gob-side entry retaining in S2-6 fully-mechanized coalface with top-coal caving (GEFCTC), the new technique of road-in packing is put forward.

摘要针对常村煤矿S2-6综放工作面采用传统技术沿空留巷的难点，提出综放巷内充填原位沿空留巷新技术。

Keywords unit method;upper corner;fully mechanized coalface;rotary radial-jet;

关键词单元法;上隅角;综采工作面;旋转径向射流;

Roof Control Design and Practice of Very Hard Roof in Coalface Instead of Knife and Pillar Mining Method in Mentougou Mine-

门头沟矿坚硬顶板取消刀柱顶板控制设计及实践