大家在查：放毒仲长统 Tahaa Scripps 2013年1月16日 GICA 辐射测量胎蛋白 JenniferChunWellesleyMass databaseintrospect--schemafeedback_schem

mining coal

网络采动煤体；采煤

mining coal

mining coal

mining coal

采动煤体

煤体注水,water-affusing into... ... ) water-affusing into coal 煤体注水 ) mining coal 采动煤体 ...

采煤

采煤破坏,Surface... ... ) mining 采煤 ) mining coal 采煤 ) mining method 采煤方法 ...

1

Under normal circumstances , at the end of pre-mining, coal mining operations prior to the start of contents of at least solid particles .

一般情况下，在采前准备结束，采煤作业开始之前，固体颗粒含量最少。

5

The process of mining coal and its combustion is associated with extensive air, water and land degradation .

煤炭开采及燃烧过程与大气、水的污染和土地退化密切相关。

7

BASF was mining coal until the late 1980s , and today even that might again make sense.

巴斯夫直到 1980年代的后期才开始涉足煤矿业，今天看来也是明智之举。

8

And here's a different way of mining coal .

开采天然气的方法是不同于采煤的。

9

The main coal seam of 8 layers in the first paragraph, the secondary could be mining coal seam 2 and 5 in the second paragraph .

主要可采煤层煤 8 层位于第一段，次要可采煤层煤 2 和煤 5 位于第二段。

11

Application of the pre-excavation and bolt -mesh support roadways on mining coal island face in longwall with top-caving mining

预掘锚网支护巷道在综采孤岛工作面末采中的应用

12

The research of the characteristic of oxygen consumption of The QIXING Mining coal in different temperature

七星矿煤样不同粒度在不同温度下的耗氧特性研究

13

Preliminary Probe into Spontaneous Combustion Mark Gases on Main-Mining Coal Seam in Pingdingshan Coal Industry Group

平煤集团主采煤层的自然发火标志气体初探

14

Analysis and handle some question and hitch in the mining coal face of hydraulic powered shield supports

掩护支架工作面问题分析和故障处理

15

Educational Reform on Foundation Curriculum of Machine Design of Directional Mining Coal

定向采煤专业机械设计基础课程教学改革初探

16

Quantitative study and classification standards of difficult mining coal seam

难采煤层的分类标准与定量化研究

17

Predicting Month Production in Mining coal Face By Comprehensive Evaluation Method

应用综合评判法预测回采工作面月产量

18

All bolt support technology for stable of large deep comprehensive fully mechanized coal mining coal

大采深综采切眼全锚支护技术

20

Analysis of Effect on Environment by Mining Coal and Discussion of the Solution Method

煤炭开采对环境的影响及对策

21

Feasibility Study on Mining Coal - measures Kaolin Mine with Combined Support

组合支架开采煤系高岭土矿可行性研究

22

rotating mining method at slowly inclined seam ' s comprehensive mining coal face

缓倾斜煤层综采面旋转开采方法

23

Research the Destruction to Land Resources by Mining Coal and Countermeasure

煤矿开采对土地资源的破坏及对策研究

24

Study on Mining Coal Strata Safely in Weathering and Oxidation Belt of Hegang Coal Mine in Jining City

济宁何岗煤矿风化氧化带内煤层安全开采之探讨

25

Management of broken roof at superior conventional machine mining coal face

高档普采工作面的破碎顶板管理

26

Practice on the roof controlling in "Three soft " coal layer artillery mining coal work face

“三软 ”煤层炮采放顶煤工作面顶板控制的实践

27

The research for land destruction by mining coal resources and land reclamation

煤炭资源开发对土地破坏及土地复垦之研究

28

Fire Fighting Measures and Effect Analysis for Hydraulic Mining Coal Faces

水采工作面防灭火措施及效果分析

30

Establishment Contents of Mining Coal Work Regulation

采煤作业规程的编制内容

热词推荐

大家在看