| 标题 |
tandard Classification of Coals by Rank;
煤炭的标准等级分类
|
| 网址 |
求助人暂未提供
|
| DOI |
暂未提供，该求助的时间将会延长，查看原因？
|
| 其它 |
American Society for Testing and Materials. ASTM D388-2017, Standard Classification of Coals by Rank; American Society for Testing and Materials: 2017. |
| 求助人 | |
| 下载 | 暂无链接，等待应助者上传 |
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