Based on the analysis of the main factors influencing on the ash index, provides that reasonable mining is the key to lift the economic benefit to coal enterprise.
通过对影响煤炭产品灰分指标主要因素的分析，提出实现合理配采，是提高煤炭企业经济效益的关键。
The test and its analysis of which the strength of pulverized coal fly ash (PFA)concrete be raised by use of the activator are introduced in this paper.
本文介绍了使用活化剂提高粉煤灰混凝土强度的试验及其分析。
Based on the results of chemical analysis of the coal ash, with reference to the standard composition of minerals the content of various mineral phases in the coal ash has been determined.
根据煤灰化学成分分析结果，参照矿物标准成分推算各矿物相在煤灰中的含量。
This paper introduces briefly the principle of the telemetering system for coal ash and gas explosion experimental tunnel and then make an exhaustive analysis of transmission errors of the system.
本文简要介绍煤尘、瓦斯爆炸试验巷道遥测系统的基本工作原理，着重分析该系统的传输误差。
Ash component analysis before and after deashing of Datong coal indicated that a linear relationship exists between ash content in deashed coal and total contents of Si and Fe in the ash.
对大同烟煤脱灰前后的灰组成分析表明，高精煤中的灰分含量与其所含的硅、铁组分的质量之和呈线性关系。
The express-analysis methods used in some foreign countries to determine ash content of coal ingoing to thermal power plants before unloading from wagons are presented, and a review thereof is given.
介绍国外火电厂入厂煤灰分在卸车前的快速检测方法，包括天然放射性法、载煤车厢称重法、辐射源照射法等，并对其作了评述。
The express-analysis methods used in some foreign countries to determine ash content of coal ingoing to thermal power plants before unloading from wagons are presented, and a review thereof is given.
介绍国外火电厂入厂煤灰分在卸车前的快速检测方法，包括天然放射性法、载煤车厢称重法、辐射源照射法等，并对其作了评述。
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