“coal preparation”的概念、定义、翻译、参考文献-科学参考

单词	coal preparation
释义	coal preparation Encyclopedia 理学〔煤田普查勘探〕释 coal preparation选煤利用煤与其他物质的不同物理、物理-化学性质，在选煤厂内用机械方法去除混在原煤中的杂质，把它分成不同质量、规格的产品的过程。
随便看	elementary factor elementary factor ideal elementary filter elementary flow elementary formula elementary function elementary function space elementary gene circuit elementary geodesy elementary geometric method elementary geometric transformation elementary geometry elementary group elementary hologram elementary Hopf algebra elementary ideal elementary idempotent elementary integral elementary interval elementary kernel elementary Kleinian group elementary length elementary logic elementary mathematics elementary matrix

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。