查询词典 liquefied petroleum gas

Essential way of solving the gas drainage problem of low permeability coal seam is to increase coal seam permeability.

解决低透气性煤层瓦斯抽放问题的根本途径是增加煤层的透气性。

In production and transportation process of coal gas, the coal tar has comparatively severe harmness.

煤焦油在煤气的生产、运输等过程中存在较大危害。

Two methods of distillation crystallization method and gas chromatography to determine the naphthalene content in coal tar oil were introduced.

介绍煤焦油中萘含量测定的两种方法：蒸馏结晶法和气相色谱法，对两种方法的优缺点及分析结果进行了对比。

Ammonia, coal tar and coke are all by-products obtained in the manufacture of coal gas.

氨气、煤焦油、焦煤都是煤气生产过程中的副产品。

The formation,growth and coalescence of bubbles and their effect on gas-liquid two-phase flow in microchannels are also discussed.

讨论了气泡对气液两相流的影响及其生成、生长和聚并规律。

This study is beneficial to the testing of coalbed gas content in the course of coalfield explorat...

对煤层气含量和煤层渗透率的研究有一定的现实意义。

It is usually used to explore metal and nonmetal mineral and geology structure such as oil, gas, coalfield and so on.

电法勘探是利用岩石间电磁学性质及电化学性质的差异作为基础的一种勘探方法，其应用领域十分广泛，可在空间、陆地、海洋、地下等各种环境内进行。

Coalification has been one of focuses for coal geology and the organic geochemistry, in recent years, with the development of coal-generated hydrocarbon and coal bed gas, understanding of the mechanism of coalification is especially important.

煤化作用一直是煤地质学、有机地球化学等学科的研究内容之一，尤其是近年来随着煤成烃及煤层气等相关问题的开展，煤化作用机理的研究显得尤为重要。

The characterof gas emission and the degree of coalification are relative to the breakdown strength ofcoal-bed.

淮北宿东矿区和淮南谢二矿的某些煤层受到过强烈的后生构造破坏，煤体的破碎强度与矿井瓦斯及煤的煤化程度的加深存在正相互关系。

Later of Yanshan movement is main period of oil-gas migration and congregation,it is also main period of coalification in Permo-Carboniferous system ^ Triassic system and Jurassic system.

燕山晚期是盆地油气运移和聚集的主要时期，也是石炭—二叠系、三叠系及侏罗系的煤化作用的主要时期。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。