单词：coal dressing
coal dressing的用法和样例：
例句
- Jigging separation plays a very important part in coal preparation, it is very important to improve the precision of separation.跳汰选煤在选煤中占有重要地位，提高跳汰机的产品分离精度，一直是个重要的研究方向。
单词：coal dressing 相关文章
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中国富煤缺油少气的能源资源特点，造成能源消费主要依赖于煤炭，石油则主要依靠进口，而且带来一系列环境问题。煤清洁转化技术则可以帮助缓解这一难题。近日专家表示，我国将在2020年
实用英语