The coal accumulation process took place during their certain periods.
聚煤作用发生在特定的演化阶段。
This paper analyses the coal accumulation characteristics of every depositional environments.
总结了不同沉积环境的聚煤特点。
The coalbed and coal - rich zone was an effects which the factor of coal accumulation process systematic action.
煤层和富煤带的形成是聚煤作用因素系统作用的结果。
Transgressive coal forming and coal forming under event are the essential features of Late Palaeozoic coal accumulation in Ordos basin.
海侵成煤和事件成煤是鄂尔多斯盆地晚古生代煤聚积的基本特色。
As for SQ2 sequence, due to frequent changes in structure and subsequent strong denudation, the coal accumulation was gradually weakened.
SQ 2层序由于构造变动频繁，加上后期剥蚀严重，导致聚煤作用逐渐减弱。
SQ2 sequence due to frequent changes in structure, and because the later strongly denudation, leading to coal accumulation gradually weakened.
SQ2层序由于构造变动频繁，加以后期剥蚀严重，导致聚煤作用逐渐减弱。
Through the analyzed sedimentary characteristics and coal accumulation of the Xishanyao formation in Tuokexun coalfield, so as to provide a basis for further coal exploration.
通过对托克逊煤田西山窑组的沉积环境特征和煤层聚集规律的分析为下一步的煤炭勘探提供了依据。
The NNW structural system is considered to be synbasinal and syndepositional structures, which appear exert the most important controlling effects on coal accumulation in the basin.
北西西系是成盆期的构造和同沉积构造，对盆地聚煤起最主要的控制作用；
It was indicated in the paper that the structural setting of the basin sedimentary basement is a major factor controlling coal quality and coal accumulation of Late Triassic in Fujian.
本文研究结果表明：盆地沉积基底的构造条件是控制福建晚三叠世聚煤作用和煤质变化的主要因素。
The most favourable depositional environment for coal accumulation is the seashore plain formed by regression and the delta plain formed by the entering of rivers into the shallow bay.
聚煤最有利的沉积环境是海退形成的滨海平原和河流注入浅水海湾形成的三角洲平原。
Through analysed workable coal seam change features, coal-rich zone, the distribution features of coal accumulation Center, describe the pattern of Chengzihe River Formation in Jixi coal Basin.
通过对可采煤层变化特征及富煤带、聚煤中心分布特征的分析，简述鸡西盆地城子河组煤层聚煤规律。
The accumulation and summary of coal mining geologic information arc the best testing and a promotion to the coal geologic prospecting work.
煤矿开采资料的积累和总结是对煤田地质勘探工作的最好检验和促进。
A greenhouse experiment was performed to understand the effects of application of sewage sludge stabilized by coal fly ash on soil physicochemical properties and heavy metal accumulation in corn.
通过温室盆栽试验研究施用不同量及不同比例粉煤灰钝化污泥对土壤理化性质、玉米生长和重金属累积的影响。
A generalized sedimentary-tectonic model for extensional coal basin is presented, together with the explanation for the evolution of basin architecture and the conditions of peat accumulation.
本文提出了拉伸煤盆地最一般的沉积—构造模式，并用以解释盆地结构的演化和泥炭聚积的条件。
By planting Legume on the thin covered gangue, especially on the loess covered coal gangue, nitrogen accumulation also increased with the improvement of the biologic characteristics.
同时在煤矸石上加薄层覆盖物种植豆科植物，对其氮素的积累提高和生物性状的改善同样具有明显的促进作用，并以黄土覆盖效果更佳。
They also belong to the east part of Middle Asia coal related gas accumulation domains. The geological conditions are favorable for the formation of giant gas pools.
属于“中亚煤成气聚集域”的东段，地质条件对形成大型天然气田非常有利。
Enrichment and accumulation of coalbed methane in low rank coal have their own unique characteristics.
低煤阶煤层气富集成藏具有自身独特的特点。
Histologically, the characteristic lesion of CWP is the so-called coal macule, which consists of a focal accumulation of coal dust surrounded by a small amount of fibrous tissue.
在组织学上，特征性的煤尘肺损伤被称为“煤斑”，包括少量纤维组织及其包裹局灶性的煤尘沉积。
A field experiment shows that the rotary jet pulse ventilation is very effective for prevention and control of gas accumulation in the upper corner of coal faces.
现场试验表明，环绕射流脉冲通风对治理上隅角瓦斯积聚的效果良好。
The heat accumulation plays key role in coal self-ignition.
热量的积聚在煤自燃过程中起着关键的作用。
Coal waste's accumulation is coal industry's major burden. Either unsuccessful for environment or occupy large quantity of soil.
煤矸石的积累是煤碳工的重要负担，即不利于环保又占用大量的土地。
A coal system can be divided into substance source subsystem, accumulation subsystem and metamorphism system in temporal range.
含煤系统在时间上可以分为物质来源子系统、物质堆积子系统、埋藏变质子系统。
Only in coal bed methane accumulation area with higher saturation and permeability is the favorable area for coal bed methane exploration and development.
并认为只有在含气饱和度较高的煤层气藏，且具有较高的渗透率，才能成为煤层气勘探的有利区块。
The analysis of coal—D accumulation have showed the sedimental geologic factors on coal thinning or absence.
揭示了D煤层的形成背景、聚积规律及其变薄、缺失的沉积地质因素。
There are some questions exist in top-coal caving face like gas accumulation and high cost for treatment.
煤矿井下综放采煤工作面存在瓦斯积聚、治理费用昂贵问题。
The quantity of the secondary generated gas and the accumulation volume of coal-type gas were calculated, and the exploration prospective of coal-type gas was pointed out in this paper.
探讨了“二次生气”的时期、门限深度和门限成熟度，计算了“二次生气”量和煤型气聚集量，并展望了煤型气勘探前景。
While its geologic activities include peat accumulation and transportation, embedding activity caused by diastrophism and geothermal metamorphism of coal.
有关的成煤作用包括：泥炭的原地堆积—异地搬运作用、地壳旋回运动所引起的埋藏作用和成煤阶段的热变质作用。
Owing to complex coal-forming process, the trace elements in coal present unique accumulation and scatter laws.
由于复杂的成煤过程，煤炭中微量元素呈现独特的集散规律。
It is suggested that coal lithological types with high content vitrinites have better physical behavior conditions for coal seam gas accumulation.
提出了镜质组含量高的煤岩类型有较好的煤层气储集物性条件。
It is suggested that coal lithological types with high content vitrinites have better physical behavior conditions for coal seam gas accumulation.
提出了镜质组含量高的煤岩类型有较好的煤层气储集物性条件。
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