coal - measure是什么意思 coal - measure怎么读
coal - measure的用法和样例
- The processing techniques of coal series kaolinite are introduced.
介绍了煤系高岭土的几种深加工利用方法。 - Abstract There is coalseam methane in coalbed and coal bearing sequences in the study area.
在煤层和煤系地层中，产生并赋存着煤层气。
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