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- In the stone coal layer and the overlying black shale, there is a pyrite layer. 在石煤层或其上部的碳质页岩中含黄铁矿层。
- There is a coal layer on the clay of direct roof.This layers is unstable and easy tofall down after mining and enable the gas to gush out. 团溪锰矿的直接顶板粘土之上有一煤层，且不稳定，采后容易垮落，造成瓦斯涌出。
- The heat insulation layers are mainly the red sandstone rock, coal layer, mudstone rock of the Xujiahe Group, the Jura Upper Trias System.P... 大气降水通过岩溶槽谷下渗至热储层 ,在深部沿断裂构造线由北向南迳流 ,并在地表减压最大处 ,如河谷地段等 ,排出地表而形成温泉。
- The oil shales are associated with and lie on a coal layer of turfy-swampy facies. 煤层顶部发育的巨厚湖相劣质油页岩;分布广;层位稳定;含油率<3.;5%25。
- The widely distributed coal layer adsorbed gas is also an important potential natural gas resource. 分布广泛的煤层吸附气也是重要的潜在天然气资源。
- Wennan colliery of Xinwen Coal Mining Group is an old coalmine and is mining deep coal layer. 汶南煤矿是新汶矿业集团进入深部开采的老矿井。
- The forming mechanism of the black fume from coal layer type combustion and the measures for elimination the fume kilns are discussed. 论述了煤炭层式燃烧的黑烟产生机理和机烧炉的消烟措施；
- COF direct reduction process,in which carbon-bearing pellet bed covered by a coal layer is open-flame heated, has been investigated. 对盖碳保护下敞焰加热含碳球团堆积料层的直接还原方法(COF法)进行了研究。
- The great undulating of soleplate of the third coal layer in Wangping well field badly influence exploiting disposal and excavating coal laneway. 针对王坪井田3号煤层底板起伏变化大,严重影响开拓及采煤巷道布置的现状,利用趋势面分析的方法,分析了井田内的构造展布规律。
- Coal layers of Mine Liangjia in Longkou zone are Cenozoic tertiary soft rock layers, are consisted of mudstone, mudstone with oil rock, clay stone, mudstone with carbon, oil shale and coal layers. 摘要龙口矿区梁家煤矿煤系地层是新生代下第三系沉积的软岩地层，主要由泥岩、含油泥岩、粘土岩、炭质泥岩、油页岩和煤组成，是我国典型的三软煤系地层。
- The reflection wave of coal layer has been filtered,the diffracted wave scattered from the break point is enhanced,and the interpretation of samll KCC is improved. 在深入分析松辽盆地北部各断陷天然气成藏条件的基础上 ,指出各断陷在烃源岩发育、有机质演化程度和盖层条件上存在明显的差异。
- Water inrush from the bottom coal layer in mining work faced now is rather serious in Northern China coalfield, which constraints seriously the normal economical benefits. 在我国华北煤矿区,回采工作面煤层底板突水问题相当严重,困扰着煤矿经济效益的正常发挥。
- In this paper introduce Gu Jiao Coal mine 4# coal layer pressure obseve and analyze, master work face pressure rule. provide according to for reasonable mining and science manage. 介绍古交矿区4%23煤层综采首采面，通过矿压观测研究，初步掌握了该面矿压显现规律。为合理开采4%23煤层、科学管理顶板及支架选型提供了科学依据。
- The application of the gas drainage technology in Donghai coal mine is introduced, including gas drainage in close coal layer, gas drainage in goaf, gas drainage from coal, and local gas drainage. 介绍瓦斯抽放在东海矿的应用,抽放方式为邻近层抽放、空区抽放、本煤层抽放及局部抽放。
- Based on research of reduction of NO on coal layer, the thesis began with ShenFu bituminous coal, treated its macroscopic petrographic constituents separately with the purity enough for practice. 同时还进行了天然气和煤共烧时，用天然气再燃时的试验设计，并进行了 天然气还原NOx的数值模拟。
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
