| 释义 |
hard coal 无烟煤 以上来源于:《21世纪大英汉词典》 hard coaln.① 無煙煤(=anthracite)(←→soft coal)反義詞soft coal n. 煙煤hard coaln.=anthraciteSee alsobituminous coal详细释义源自:《新世纪英汉大词典》Collins外研社 n= anthracite;参见:bituminous coal英英释义n.a hard natural coal that burns slowly and gives |