单词：anthracites
(anthracite 的复数) n. 无烟煤
[化] 无烟煤
[化] 无烟煤
plural of anthracite
n. a hard natural coal that burns slowly and gives intense heat
n. a hard natural coal that burns slowly and gives intense heat
单词：anthracites 相关文章
298. The Steam Locomotive. 298．蒸汽机车 Steam was used to drive boats through the water. 人们用蒸汽在水上驱动船， Why should not steam be used to haul wagons over a railroad? 为什么不可以用蒸汽在路轨上拉动马车？ Th
发表于:2018-12-28 / 阅读(111) / 评论(0)
美国学生历史
美国学生历史