In the constitution of energy consumption in our country, coal is the main energy, air pollution is a serious environment problem caused by coal mining and use.
我国的能源消费构成中，主要是以燃煤为主，在煤炭开发和使用中所带来的环境问题，以大气污染最为严重。
The paper introduces the working principle, constitution and application of a new type liquid variable resistance starter of high power motor used in coal mine.
介绍了一种新型矿山大功率电机液体变阻启动器的工作原理、构成及应用情况。
This special kind of constitution relationship provides beneficial condition for the forming of oil derived from coal.
显微组分间的这种配置关系为煤成油藏的形成提供了非常有利的条件。
应用推荐