1.
Study on the characteristics and variation regulations of coal quality in A'ai mining area of Tabei coalfield
塔北煤田阿艾煤矿区煤质特征及其变化规律
2.
Practices of Main Mineable Coal Seam Roof Processing in Aai Mine Area, Kuqa County, Xinjiang
新疆库车县阿艾矿区主采煤层顶板处理实践
3.
CHAPTER V PROTECTION OF COAL MINING AREAS
第五章 煤矿矿区保护
4.
An area in which deposits of coal are found.
煤矿区发现煤矿层的区域
5.
I was born in Burdine, Kentucky, in the heart of the Appalachian coal-mining country.
我出生在阿帕拉契山脉煤矿区中心的肯塔基州柏定市。
6.
Research on Top-coal Caving Difficult Degree of 8-1 Coal Seam of Baode Colliery in Shendong Mining Area
神东矿区保德煤矿8-1煤顶煤可放性研究
7.
Study on methane emission law from the coal wall of driving gateway in Adaohai coal mine
阿刀亥煤矿掘进巷道煤壁瓦斯涌出规律的研究
8.
INVESTIGATION ON AIDS RELATED KNOWLEDGE,ATTITUDE AND PRACTICE AMONG CONSTRUCTION WORKERS AND COAL MINERS IN TAIYUAN
太原市煤矿、建筑工人艾滋病知信行调查
9.
Study on the Number of Micro-organisms at Root of Mugwort in Soil in Mining and Non- mining Area
矿区与非矿区艾蒿根部微生物数量比较研究
10.
Study on Enrichment of Heavy Metal in Mugwort in Soil in Mining and Non-mining Area
矿区与非矿区土壤重金属在艾蒿中的富集研究
11.
Coal Rank Distribution in No.3 Surface Minefield,Juhugeng Coalmine Area
聚乎更煤矿区三露天煤类分布的探讨
12.
3D seismic exploration technology for lower coal group in gob area
煤矿采空区下组煤三维地震勘探技术
13.
an impoverished coal mining area in the Appalachian Mountains (from Pennsylvania to North Carolina).
位于从宾夕法尼亚州到北卡罗来纳州的阿巴拉契亚山脉的一个用尽了的煤矿区。
14.
A city of southeast Iowa southeast of Des Moines.It is a commercial center in a farming and coal - mining area.Population, 24, 488.
奥塔姆瓦美国衣阿华州南部城市，位于得梅因东南。是农业及煤矿产区的商业中心。人口24，
15.
Study of Ore-forming Potential of Gallium in Coal for the First Group of State Programmed Mining Districts
首批煤炭国家规划矿区煤中镓的成矿前景
16.
Code for design of district station and chambers of coal mine
煤矿矿井采区车场和硐室设计规范
17.
Code for the general design of coal mine area
煤矿工业矿区总体设计规范
18.
Research on the Carry Capacity of Resources and Environment for the Large-Scale Coal Mining Area
大型煤矿矿区的资源环境承载力研究