基本释义:

煤级

网络释义

1)coal rank,煤级

2)rank,煤级

3)high rank coal,高煤级煤

4)low rank coal,低煤级煤

5)high-rank coal,高煤级煤

6)middle-rank coal,中煤级煤

用法和例句

Characters of coal classification and coal rank distribution in third member of Shahejie Formation in eastern depression of Liaohe basin;

辽河盆地东部凹陷沙三段煤种和煤级分布特征

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。

The comprehensive research is made on equilibrium moisture, isothermal adsorption feature, proximate analysis and coal petrology for approximate 140 coal samples with different rank and from different places.

通过对近几年来采自不同地区， 各种煤级１４０ 个煤样的平衡水分、等温吸附特性、煤岩组成和煤质的综合研究， 揭示了煤在平衡水分条件下等温吸附特性的变化规律， 探讨了其影响因素。

This has provided an important clue for setting up a new development base of high rank coal seams in China.

本文介绍了贵州织纳煤田五轮山矿区的地质背景、煤储层特征以及煤层气资源与分布情况,通过初步调查发现,贵州织纳煤田五轮山矿区煤层气基本地质条件与晋城地区具有一定可比性,这为形成我国新的高煤级煤煤层气开发基地提供了重要线索。

Through X ray diffraction(XRD) analysis of high rank Carboniferous period coal located in the northern foreland basin of Dabie Orogenic Belt in the eastern China,the evolution character of XRD parameters of high rank coals and the effecting factors are studied.

通过对大别造山带前陆盆地石炭纪含煤岩系高煤级煤的X射线衍射分析 ,探讨了高煤级煤基本结构单元的演化特征及其影响因素。

Adsorption experiments of low rank coal under equilibrium moistures;

低煤级煤平衡水条件下的吸附实验

Liquefaction property of low rank coal in west China

我国西部低煤级煤的液化性能

The low rank coal reservoirs in limnic basins of Jungaar and Tuha were researched.

研究了准噶尔、吐哈盆地低煤级煤储层的特征 ,结果表明 :该储层几何形态复杂 ,且受成煤环境的控制 ,表现出显著的规律性变化 。

Based on the analysis of the maturing degree,abundance and type of organic matter,the characteristics of organic matter of high-rank coal in Jincheng has been expounded.

通过对晋城高煤级煤的有机质成熟度、有机质丰度和有机类型的分析， 阐明了本区高煤级煤的有机质特征。

Based on the data from the proxina and ultimate analyses of vitrains in the high-rank coals from the West-northern Henan, their macromolocular structures and true density were calculated, the further exploration was made on the coalified pattern and geological causes.

依据工业分析和元素分析数据,利用统计结构方法,求得了豫西主要高煤级煤矿区太原组与山西组镜煤的大分子结构参数及真密度,并据此进一步分析了有机元素及结构参数的煤化作用规律及其地质原因。

Through electron paramagnetic resonance(EPR) analysis of high-rank coal samples from the Carboniferous coal located in the northern foreland basin of Dabie orogenic belt in the eastern China,the evolution characteristics of aromatic structures of coals of different metamorphism types and the effecting factors are studied.

通过对大别造山带前陆盆地石炭纪含煤岩系高煤级煤的电子顺磁共振分析,探讨了不同变质类型煤的芳香结构演化特征及其影响因素。

Based on the results of isothermal adsorption experiments on 184 middle-rank coal samples under equilibrium moistures(with vitrinite reflectances of between 0.

50%)煤在平衡水条件下的等温吸附实验成果,模拟了中煤级煤的朗格缪尔体积和压力与煤级的关系,建立了不同埋深(温度、压力)条件下不同煤级煤饱和吸附气量量板,探讨了压力和温度对中煤级煤吸附甲烷能力的综合效应,对比分析了中煤级煤吸附特征与低、高煤级煤的差异,提出了中煤级煤吸附气量预测的方法。

CBM development potential of high rank coal with reference to Qinshui coal field,Shanxi

高煤级煤的煤层气开发潜力——以沁水煤田为例

Raman Spectroscopic Characteristics of Different Rank Coals and the Relation with XRD Structural Parameters

不同煤级煤的Raman谱特征及与XRD结构参数的关系

Preliminary Study on Low-rank Coal Reservoirs and Coalbed Methane Pool Forming in Zhungaer Basin, NW China;

准噶尔盆地低煤级煤储层及煤层气成藏初步研究

Evolution Kinetics of Hydrogen Generation from Low Rank Coal Pyrolysis and Its Relation to the First Coalification Jump

低煤级煤热解H_2生成动力学及其与第一次煤化作用跃变的关系

Mechanism of uranyl ion adsorbing and complexing onto low-rank coal and ore-forming process of uranium associated coal measures

低煤级煤与UO_2~(2+)的吸附络合及亲煤型铀矿成矿过程

A Potential High Rank Coal Area for CBM Development Base in South China-Preliminary Analysis on CBM Geological Conditions of Wulunshan Coal Area in Guizhou

我国南方潜在的高煤级煤煤层气开发基地-贵州五轮山矿区煤层气地质条件浅析

Classification for quality of coal--Classification for calorific value of coal

GB/T15224.3-1994煤炭质量分级煤炭发热量分级

Classification standard for size fractions of coal

GB/T189-1997煤炭粒度分级

The Foundational Research on Water Infusion for Longwall Top Coal Caving Face in Para-Anthracite Seam;

低级无烟煤综放工作面煤层注水基础研究

～(13)C-NMR Research of Coalification Mechanism for Low-medium Rank Coal;

中低煤化作用阶级煤化作用机理的～（13）C-NMR研究

Constructing large-sized coal mines to push forward the industrial restructuring in the coal sector of Shanxi

建设大型煤矿,推动山西煤炭产业结构优化升级

TheASTM rankings for bituminous coal, sub-bituminous coal, or lignite fit the spreader combustion process well.

美中试验材料协会根据煤在燃烧时的性能把煤分为烟煤，次烟煤，褐煤几个等级。

The results showed that, compared with grade Ⅱ fly ash, grade Ⅰ fly ash was not certainly good in pozzolanic reactivity.

结果表明 :相比于Ⅱ级粉煤灰 ,Ⅰ级粉煤灰火山灰活性未必更高 ;

Treatment of forecastle deformation of 3 000 dwt selfpropelled and self-dischorging collier

3000吨级自航自卸煤船艏楼变形的处理

The Study on Superfine Pulverized Coal Reburning for NO_x Reduction;

超细煤粉分级燃烧NO_x还原过程的研究

Design of 600MW Pulverized Coal-fired Boiler;

600MW级机组煤粉锅炉设计计算

Numerical Simulation of Air-staged Combustion for a Pulverized Coal-fired Boiler Furnace in One-dimensionality;

一维煤粉锅炉空气分级燃烧数值模拟

Coal Chemical Industry:the Only Way to Promote Industrial Upgrading in Huaibei City;

煤化工:淮北市产业升级的必由之路