Coal 在线电子书 图书标签:
发表于2024-11-28
Coal 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024
Formed over millions of years, coal is a sedimentary rock that has been mined by people for use as fuel at least as far back as 1000 BC. This fascinating new book shows the basic make-up of coal, how it is mined, and the problems its use has created.
评分
评分
评分
评分
Coal 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024