The result offers some basis for predicting gas emission quantity accurately.
计算结果为瓦斯涌出量的准确预测提供了依据。
A prediction of a gas emission quantity from a seam is an important measure to the mine safety production.
预测煤层瓦斯涌出量是煤矿安全生产的一个重要措施。
After the time series fuzzy fractal processing of the mine gas emission quantity, the non linear relations of the influence factors were combined with BP neural network.
通过对矿井瓦斯涌出量时间序列的模糊分形处理，用BP神经网络对影响因素间的非线性关系进行拟合。
The paper is to organically combine the time series analysis method and neural network technology in the fuzzy control technology and fractal theory to predict mine gas emission quantity.
将模糊控制技术、分形理论中的时间序列分析方法与神经网络技术有机地结合起来，并运用于矿井瓦斯涌出量的预测中。
The math model of the gas emission quantity is established by the method of gas geology math model. The gas emission quantity of the working face of the unmining area is predicted by the model.
利用瓦斯地质数学模型法建立了工作面瓦斯涌出量数学模型，预测了未采区工作面瓦斯涌出量。
By analyzing main effect factors, using grey system theory the paper studies the main controlled factors of gas emission quantity in Xiashijie coalmine and sequences the main controlled factors.
通过分析瓦斯涌出量的主要影响因素，运用灰色系统理论并结合权重理论对下石节煤矿瓦斯涌出量主控因素进行了研究，并对主要影响因素进行了排序。
The Face ventilation systems and airflow quantity influence the goaf gas emission to a considerable extent. This influence is quantitatively analysed by means of model experiment.
工作面通风方式和风量对采空区沼气涌出量的影响不容忽视，作者通过模型实验对这种影响进行了定量分析。
The paper analyzes the prospect of CMM based on investigations on coal output, gas emission and changes of gas drainage quantity in mine areas in China.
文章在分析我国煤矿区煤炭产量、瓦斯涌出量、瓦斯抽放量变化的基础上，提出对我国煤矿区煤层气开发前景的分析。
The controlling methods of nitric acid tail gas is evaluated, and the ways to reduce the quantity of nitric oxide emission in nitric acid process is explored.
评价硝酸尾气治理方法，探讨硝酸生产中降低氮氧化物排放的途径。
The design, apparatus and results of the experiment are shown. The modification of goaf gas emission under the conditions of several common face ventilation systems and airflow quantity is given.
本文介绍了实验方法、装置和结果，提出了关于风量以及常见的几种工作面通风方式对采空区沼气涌出量影响的修正方法和系数。
The design, apparatus and results of the experiment are shown. The modification of goaf gas emission under the conditions of several common face ventilation systems and airflow quantity is given.
本文介绍了实验方法、装置和结果，提出了关于风量以及常见的几种工作面通风方式对采空区沼气涌出量影响的修正方法和系数。
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