“下级”的概念、定义、翻译、参考文献-科学参考

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。

单词	下级
释义	下级 Low Middling
随便看	selector block selector button selector carrying capacity selector channel selector circuit selector code select order selector dial selector disc selector fork selector installation selector magnet selector marker selector mechanism selector panel selector pen selector pen attention selector plug selector-pulse generator selector pushbutton selector register selector relay selector-repeater selector rod selector rod housing