“catalyst grading”的概念、定义、翻译、参考文献-科学参考

单词	catalyst grading
释义	catalyst grading Encyclopedia 工学固定床加氢释 catalyst grading催化剂级配在一定原料性质和工艺条件下，将不同功能的加氢催化剂按一定的比例依次装填，以满足产品性质和运转周期要求的技术。是固定床加氢工艺的核心技术之一。
随便看	balloelectric Ball of wool ballometer ballonet balloon balloon astronomy balloon-based astronomy balloon-based IR astronomy balloon-based UV astronomy balloon-based X-ray astronomy balloon-based γ-ray astronomy balloon-borne astronomy balloon-borne instrument balloon-borne IR telescope balloon-borne photometer balloon-borne spectroscope balloon-borne telescope balloon-borne UV telescope balloon-borne X-ray telescope balloon-borne γ-ray telescope balloon dilatation balloon explosion balloon flower ballooning instability ballooning mode

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。