单词:sooty coal
sooty coal的用法和样例:
例句
- Quality and some use method of mud coal are introduced.介绍了泥煤的性质及综合利用的方法。
- Coal rock can be classified as humic and sapropelic coal.在煤岩的分类中,有腐殖煤和腐泥煤之分。
单词:sooty coal 相关文章
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