查询词典 coal-black

The comprehensive research showed that coalbed methane accumulation is mainly controlled by coal seam thickness ,coal petrological composition,coal rank,adsorbability and good preservation conditions.

综合研究表明：该区煤层气富集的控制因素主要为煤层厚度、煤岩组分、煤级、吸附性能和良好的保存条件。

A new desulfurization apprach for pulverized coal combustion is introduced in this paper; pulverized coal is first burn in a precombustion furnace under oxygen deficient condition (about 30% air needed in boiler is provided for precombustion), in precombustion moust of sulfur in coal is decomposed and oxidized, and evolved, the sulfur evolved is trapped in a desulfurizing fluidized bed by calsuim, and then the char and gas are introduced to the boiler furnace for complete combustion.

本文提出了一种煤粉燃烧脱硫新方案，利用煤中硫优先氧化分解释出的原理，用少量的空气（大略为锅炉实际空气用量的30％），在一前置燃烧室中，使煤粉中硫的绝大部分被分解氧化，释放出来，释放出来的硫在脱硫流化床中被石灰脱硫剂脱除，未燃烧的炭粒与烟气再吹进锅炉膛中完全燃烧。

The strategic analysis is introduced into coal enterprise logistics cost precontrol and it set goals for the logistics cost at last from the strategic plane of the coal enterprise competition demand,through logistics strategic cost agent analysis and logistics strategic location analysis to determine logistics service level under different logistics strategies in coal enterprise,and it provides premise and foundation for the logistics cost control from the view of value creating.

煤炭企业物流成本事前控制引入战略分析法，从煤炭企业竞争需求的战略层面出发，通过物流战略性成本动因分析，物流战略定位分析，确定煤炭企业不同物流战略下的物流服务水平，可以最终为确定物流成本目标，为从价值创造的角度进行物流成本控制提供前提或基础。

Evaluating innovation system ability of state-owned coal mines that is predeterminative condition of building high yield and high efficiency innovation system of state-owned coal mine and constituting definitely innovation stratagem of coal mine.

评价国有煤矿创新系统能力是建设高产、高效的国有煤矿创新系统和有的放矢地制定国有煤矿创新战略的先决条件。

High organic sulfur Beisu bituminous coal and high pyritic sulfur Yangquan anthracite, which involved in raw coal and no inorganic sulfur coal, have been used to investigate the regularity about sulfur forms evolution during combustion by means of improved automatic sulfur analyzer in this paper.

利用改进的自动测硫仪，以高有机硫北宿烟煤和高黄铁矿硫阳泉无烟煤作为研究对象，在不同温度下对原煤和脱无机硫煤在煤燃烧过程中硫析出特性进行了研究，另外对原煤和脱无机硫煤在热解和燃烧时硫形态的变化进行了研究。

These experiment investigztions indicate: When coal is under high heating pyrolytic condition, the pyrite in coal decomposes very quickly, some amount of pyritic sulfur is transformed to organic sulfur and 〓 char, the volatile waterial in coal will restrain the transformation.

根据这一些试验研究得出：煤在快速热解条件下，煤中的黄铁矿的热分解极快，黄铁矿热分解的一部分硫转化成有机硫而存留在残炭中，煤中挥发份对这种硫的转化起抑制作用。

It has been summarized that domestic coal-blending study in ten years, included two major problems concerning coal blending ratio and pyrogenation and combustion of mixed-coal.

综述了国内10年来混煤研究的情况——混煤掺烧配比和混煤热解与燃烧两个主要问题。

The main way to process local produced coal is carbonization at lower temperature with semicoke, coal tar, coal gas, and so on as the products.

利用陕北低变质煤为原料进行低温干馏，得到半焦及煤焦油、煤气等产品，是目前陕北地方煤化工的主要工艺。

Through analyzing the problem of the coal wall support, top-coal caving and the design of powered support,the author explains the method to control the coal slabbing and the measure of powered support design and the collocation of the rear transport pan.

通过对仰采放顶煤工作面煤壁支护、放顶煤问题、液压支架设计等方面的分析，说明在仰采工况下控制煤壁片帮方法以及液压支架设计、后部输送机布置应采取的措施。

Iodine levels increase from lignite through subbituminous coal and bituminous coal to anthracite,it indicates that coal adsorbed excess iodine from the hydrothermal fluids during the process of metamorphism,including geothermal metamorphism and telemagmatic metamorphism.

从褐煤、亚烟煤、烟煤到无烟煤，碘的含量越来越高，表明在变质作用(含深成变质作用和区域岩浆热变质作用)过程中煤吸收了热液流体中的碘。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。