“分级机”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	分级机
释义	请查阅分级机--筛分机
随便看	optical data track optical data transmission channel optical dating optical defect optical defect optical defect optical deflector optical delay camera optical delay line optical densitometer optical density optical depth optical depth optical depth optical design optical detection optical detector optical detector optical detector optical device optical device optical device polishing machine optical device vacuum evaporation equipment optical diameter optical dielectric waveguide