價格：免費
更新日期：2016-04-16
檔案大小：14.8 MB
目前版本：5.0
版本需求：需要 iOS 6.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
World Coal is the leading monthly trade publication for the global coal industry, covering the mining, processing, handling and transportation of coal. Each issue features expert technical articles and case studies, in-depth reports from the key coal-producing regions around the world and the latest industry news and comment.
支援平台：iPhone, iPad