coal-rock的用法和樣例：
例句
- Coal rock can be classified as humic and sapropelic coal.
在煤巖的分類(lèi)中，有腐殖煤和腐泥煤之分。 - Research shows that maceral and the degree of metamorphism of coal rock are key factors that control the generating and storing capacity of coal rock.
煤巖組分和煤變質(zhì)程度是影響煤層生儲氣能力的主控因素。
coal-rock的相關(guān)資料：
臨近單詞
coalless
coal
coal-fired power enterprise
coal roadway drilling machine
coal-gas washing wastewater
coal worker rs pneumoconiosis
coal mine businedd enterprise
coal black liquor slurry char
coal landing-storage system
coal underground gasification
coal-gangue fragmental size
coal buring power plant units
