“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	community theory of grassroots market Community traffic community trial community word community worker community workstation community zone commutability commutable operators commutable substitutions commutant commutant lifting theorem commutate commutating commutating condenser commutating pole commutating subalgebra commutation commutation circuit commutation coefficient commutation law commutation of cash taxes into silk or other goods commutation of D.C.machine commutation of tax silk into cash commutation property

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。