查询词典 coal mine

Though the contents of trace elements in coal are very low, environment pollution caused by trace elements has been an inarguable fact At present, more researches lay particular stress on the occurrence during coal combustion, and several about coal gasification. The researches about trace elements in fluidized bed gasification are much less, saying nothing of pressurized fluidized bed gasification.

目前国内外研究更多的偏重于燃煤过程，对煤气化过程中微量元素迁移规律的研究较少，关于流化床气化炉型的文献更少，涉及加压煤气化过程中微量元素迁移规律的研究几乎没有。

The strata are Triassic Xujiahe group sand-shale stratum which containing coal layer. It is nearly three-century history about the coal layer exploitation. In that time, because of the outdated technique and inorganization, the coal caves have the characteristic of randomicity, concealment, universality, no obviously regularity and the small scale for single cave.

坝区地层为三叠系须家河组砂页岩含煤地层，煤层的开采已近300年历史，由于当时开采技术落后、无组织性，导致煤洞具有随机性、隐蔽性、广泛性、单洞规模小、无明显规律等特点。

Principles of the method are that all ash composition comes from the minerals and clasts in coal seams, so it is possible to reversely infer the sorts, contents and grading law of the minerals and clasts of coal seam from the sorts, contents and grading law of ash composition ,in advance to judge the coal forming environment.

其原理是：灰成分与煤中矿物质种类与含量具有成因上的相关关系--据SiO -Al2 O3 端元特征，可以判断介质的总体运动方向；由CaO -MgO端元特征，可以判断泥炭沼泽受海水影响的程度；由Fe2 O3 -SO3 端元特征，可以判断聚煤环境的氧化还原条件。

It is directly related to the development and exist of the enterprise. Seen from the dog-eat-dog market and the states of the coal enterprise. It is a logjam way to improve the price and increase the output of coal, but there is only way to improve the economical efficiently of coal through controlling the cost. But, on controlling of the cost, there is a great limitation in traditional product-centered cost calculation system.

从激烈的市场和煤炭企业自身的情况看，煤炭企业提高价格和提高产量的方法是行不通的，只有通过内部自身进行有效的控制成本才是提高煤炭企业经济利益的根本途径，而在控制成本方面，传统的以"产品"为中心的成本核算体系存在很大的局限性。

Judged from coal rank, combustion characteristics and kinetic analyzing results, the stone coal should be classed as a high rank and maggy anthracite coal.

从燃烧特性参数和反应动力学参数判断，石煤属于高变质的无烟煤。

According to the viewpoint of coal petrography,the geologic and formation condition in Fujian, factors and types of coal metamorphose are described, the results show that coal metamorphose in Fujian belong to multivalence and superposition .

从煤岩学角度并结合福建省的地质、构造条件，阐述了影响福建省煤变质的因素和类型，研究表明，福建煤的变质应属多元、叠加的结果。

In this paper, Petrographical coal blending and predicing coke quality were done using 15 kinds of normal coal, by 40Kg coke oven and using microphotometer and polarized light microscope to check the quality of the coke, on the basis of investigation of quality, stability and price of about 30 kinds of coking coal recently used by ANGANG GROUP.

本文在对鞍钢近年使用的约30种炼焦煤的质量、稳定性及价格充分调研的基础上，选择了15种常用煤为实验煤种，以40Kg实验焦炉为炼焦手段，以显微光度仪和偏光显微镜为煤岩检测工具，开展了煤岩配煤与预测焦炭质量的研究工作。

The paper reports test results of fine coal flotation with NARK collector instead of diesel oil and it points in the paper that application of the new collector can effect optimization of coal flotation system and improvement of clean coal yield and economic benefit .

介绍了纳尔科新型捕收剂替代柴油作煤泥浮选捕收剂的应用试验结果，指出新型捕收剂的应用可实现浮选系统的优化和浮选精煤产率与经济效益的提高。

This invention relates to a gas reburning and double-channel rich/lean integrated combustor of low Nox, in which 7 air nozzles and 7 fuel nozzles interlace with each other. The air nozzles are all connected to a bellow and receive air supply from a large tank-type bellow. The fuel nozzles are connected to respective fuel system through the bellow. From up to down, the 7 fuel nozzles are: the gas nozzle, the double-channel up-lean and down-rich coal powder nozzle, the double channel up-rich and down-lean coal powder channel, 3 double-channel level rich/lean coal powder nozzle (the rich phase is near the flame), and the oil nozzle inside the nethermost air nozzle.

气体再燃与双通道浓淡集成型低Nox燃烧器，7个空气喷嘴和7个燃料喷嘴交错布置，各空气喷嘴与风箱连接，由一个槽型体大风箱供风，各燃料喷嘴均穿过风箱同各自的燃料系统连接，7个燃料喷嘴从上至下依次排列为：燃气喷嘴、双通道上淡下浓煤粉喷嘴、双通道上浓下淡煤粉喷嘴和3个双通道水平浓淡煤粉喷嘴，燃油喷嘴置于最下边的空气喷嘴中。

9 Coal seam hosting pattern,coal-forming paleogeography and its evolution,and illuminated the control action of depositional environment toward coal seam thickness.

以勘探资料为基础，对该区9号煤层赋存规律、成煤古地理及其演化进行了分析研究，阐述了沉积环境对煤层厚度的控制作用。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48