underground coal gasification的用法和樣例：
例句
- This paper discusses the principle of coal gasitication underground and experimental means.
對國內外煤地下氣化研究理論及實(shí)驗方法進(jìn)行了概括性敘述。 - Great progress on research for underground coal gasification technology has been also obtained in China.
我國對煤炭地下氣化技術(shù)的研究取得了很大進(jìn)展。
