(noun.) a hard natural coal that burns slowly and gives intense heat.
塞西尔手打
双语例句
The annual production of anthracite coal in Pennsylvania is more than 86,000,000 tons of 2,240 pounds, valued at the mines at $198,000,000. 佚名.神奇的知识之书.
The terms semi-anthracite, semi-bituminous, coking coal, splint coal, etc. 佚名.神奇的知识之书.