coal seam的例句大全

Fuzzy evaluation on coal seam geological condition of coal face

工作面煤层地质条件开采工艺性的模糊综合评价

The spontaneous combustion of coal seam of the major problems in safe production of coal mine.

煤层自燃问题一直困扰着我国煤矿的安全生产.

Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation.

煤体层理结构的研究是煤层气开发开采的理论基础和前提条件.

Analysis of lamprophyre insert into coal seam influence to seam deposit law

煌斑岩侵入对煤层赋存规律的影响分析

The horizontal section top coal caving in steep seam is different from the gently inclined seam.

急斜煤层水平分段放顶煤开采与缓斜煤层不同,工作面沿煤层厚度的水平线布置,长度短.

Li Mingchao Coal seam gas and its reconnoiter and exploitation. Beijing: Geology Publishing House, 1996.

李明潮,梁生正,赵克镜.煤层气及其勘探开发[M]. 北京: 地质出版社, 1996.

The coal seams were crossed frequently in the construction of Tianchi Coal Mine airshaft, and the gas content was great. The occurrence of coal seam situation was grasped by using borehole surveying and geologic column.

针对天池矿回风立井井筒施工中频繁揭穿煤层并且瓦斯含量较大的情况，通过打钻探煤结合地质柱状图准确掌握煤层的赋存情况；

A coal seam or a coal seam group constituted independent depositional system peat swamp system.

这些煤层(煤层组)构成了独立的沉积体系——泥炭沼泽体系.

Points out that the coal seam thickness, coal seam texture and coal mass structure are not only changed but also the degree of coalification is increased and the coal ash is added by bedding slip structure.

指出了层滑构造不仅使煤层厚度、煤层结构和煤体结构发生变化，而且使煤层的煤化程度提高、灰分增加。

This paper summarizes the characters of mining roadway layout in thick-seam mining in Xinglongzhuang coal mine.

总结了兴隆庄煤矿厚煤层开采先后所用“采区巷道布置方式”特点与存在的问题.

The method of gas drainagecoal seam gas drainage , near coal gas drainage , and goaf gas drainage.

瓦斯抽放的方法有本煤层抽放 、 邻近层抽放和采空区抽放.

The crack in the coal seam is divided into two kinds: endogenic crack and exogenous crack.

煤层中的裂隙分两种,即外生裂隙和内生裂隙.

The authors used the Analytic Hierarchy Process ( AHP ) in the researches of coal seam floor water-irruption.

将系统工程中的层次 分析法 引入煤层底板突水的研究中.

Study on application electric traction coal cutter in thin coal seam

薄煤层电牵引采煤机的应用研究

This seam of coal reposes on a layer of clay.

这个煤层处于一层黏土岩之上.