“sand-grading”的概念、定义、翻译、参考文献-科学参考

单词	sand-grading
释义	sand-grading 砂粒级配
随便看	disk controller disk controller board disk conveyer disk counter disk coupling disk crash disk crusher disk cutter disk database disk discharger disk dish disk doffer disk-doughnut baffle disk drill disk drive disk drive management system disk driver disk drive system disk dryer disked bottom disked closure (end; bottom) disk edit disk emery cloth disk engine diskette

科学参考收录了1248194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。