coal mine gas的用法和樣例：
例句
- Research on the Principle and Methods of Danger Assessment of Continuous Danger Source and Their Application in Coal Mine Gas Disaster.
連續危險源危險性評價(jià)原理與方法及其在煤礦瓦斯災害中的應用研究。 - The alleviation and prevention of the natural disaster caused by outbursts in coal mines are of great significance.
對減輕和防止煤礦瓦斯突出自然災害具有重要意義。
