多煤层,multiple coal seams
1)multiple coal seams多煤层
1.Improving clean coal quality by the way of multiple coal seams blended washing;多煤层原煤入选 稳定精煤质量
2.The relation between district raise in the multiple coal seams and its pillars;多煤层采区上山与煤柱之间的关系
3.Theoretic study by simulation method on the strip mining of multiple coal seams;多煤层条带开采模拟理论研究
英文短句/例句

1.Evaluation method for pillar stability during strip mining in multiple coal seams多煤层条带开采煤柱稳定性评价方法研究
2.Stability evaluation of mine goaf with multi-coal seams and complex landform复杂地貌多煤层采空区的稳定性评价
3.Numerical simulation for protection scope of upper protective seam in steeply inclined multi-coal seam急倾斜多煤层上保护层保护范围的数值模拟
4.Numerical Simulation of Ground Movement Behavior in Hongling Inclined Multiple Seams Mining;红菱煤矿倾斜多煤层开采地表移动的数值模拟研究
5.Simulation Research on the Surface Moving Rule Due to Mining in Steep and Multiple Coal Seams;急倾斜多煤层开采地表移动规律模拟研究
6.Technology and Practices on Deep Mine Shaft Sinking Through Multi Outburst Seam深立井揭穿多层突出煤层技术与实践
7.Study on Coal Reservoir Physical Properties in Eastern Margin of Ordos Basin;鄂尔多斯盆地东缘煤层气储层物性研究
8.Research And Practice of Exposing Multi-Coal Seam Prominent Technology in Deep Shaft深立井揭穿多层突出煤层技术研究与实践
9.Coalbed methane(CBM) development potential of low rank coal:A case study from Ordos Basin低变质煤的煤层气开发潜力——以鄂尔多斯盆地侏罗系为例
10.A Study of the Method for the Re-mining of the No.10 Seam after the Completion of the Mining of its Underlying Seams at Shuangyang Coal Mine双阳煤矿10号煤层多次反程序开采后复采的研究
11.Geological characteristics and prospects for exploration of coalbed methane in Wushen coalfield , Ordos Basin鄂尔多斯盆地乌审煤田煤层气地质特征与勘探开发前景
12.Application of Pulverized Coal Ash-Gangue Board in Multi-layered Steel Structure Housing Surrounding Protection System粉煤灰-煤矸石板系在多层钢结构住宅围护体系中的应用
13.There are many kinds of forms of gas discharge, but the main form is soft coal seam gas discharge.瓦斯抽放形式有多种,本煤层抽放是其主要形式。
14.CBM Geology and Orientation of Exploration and Development of Eastern Fringe of Ordos Basin鄂尔多斯盆地东缘煤层气地质及勘探开发方向
15.Study on Forecasting Model of Coalbed Methane in the East of Ordos Basin;鄂尔多斯盆地东部煤层气资源预测模型研究
16.Research and Development on Coal Gangue Light Concrete Board Series in Multi-Story Steel-Structured Residential Building;多层钢结构住宅中煤矸石轻质砼板系研发
17.Application of Suspended Load Support Multi-cycle Technology to In-the-seam Face;悬移支架多循环技术在单一煤层工作面的应用
18.Select the Thick Coal Seam Stopping Technology Form With the Multi-Objective Decision Methods;用多目标决策法选择厚煤层回采工艺方式
相关短句/例句

multi-coalbed mining多煤层开采
1.Through the research of multi-coalbed mining gas gushing working face,we summarized the rule of gas gushing and distributing,support some prevention and cure measures,which controled gas accident efficiently and improved the yeild and realized safety production.通过对多煤层开采高瓦斯采煤工作面瓦斯涌出规律的研究,总结出瓦斯的涌出规律和分布规律,提出了防治措施,经过实践有效地控制了瓦斯事故,大幅度提高了原煤产量,实现了安全生产。
3)multiple seam blocks多煤层采区
4)multiple splitting coalseam多分裂煤层
5)Inclined multiple coal seams倾斜多煤层
6)multi-coal seam strip mining多煤层条带开采
1.The law of surface movement for multi-coal seam strip mining;多煤层条带开采地表移动规律
2.Base on the simple supported beam theory in material mechanics,the relevant mechanical model is set up when the centers of the upper pillar and lower pillar are not in a vertical direction on multi-coal seam strip mining.在材料力学简支梁理论基础上,建立了多煤层条带开采上下条带的煤柱完全不对齐时煤层间岩体的力学模型,分析并计算了各种地质和采矿因素(如采深、层间距、采出率等)对多煤层层间岩体稳定性的影响,研究了层间岩体应力的变化规律,并得出了层间距及下煤层采宽对保持煤层间岩体的稳定性有着重要作用的结论。
延伸阅读

多苯基多亚甲基多异氰酸酯 多苯基多亚甲基多异氰酸酯,简称PAPI,或称粗MDI,浅黄色至褐色粘稠液体.有刺激性气味。相对密度(20℃/20 ℃)1.2,燃点218℃。PAPI实际上是由50%MDI与50%官能度大于2以上的多异氰酸酯组成的混合物。升温时能发生自聚作用。溶于氯苯、邻二氯苯、甲苯等。PAPI的活性低,蒸气压低,只是TDI的百分之一,故毒性很低。 用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中,改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内,远离火种、热源。严格防水、防潮,避免光照。