“nanosecond”的概念、定义、翻译、参考文献-科学参考

单词	nanosecond
释义	nanosecond [`nan·ǝ´sek·ǝnd] ^MECHANICS A unit of time equal to one-billionth of a second, or 10^-9 second.
随便看	negative lens negative logic negative meniscus lens negative mirror negative modulation negative movement negative nodal points negative part negative pedal negative phase negative phase sequence negative-phase-sequence relay negative picture phase negative pion negative plate negative pole negative potential negative pressure negative principal planes negative principal point negative rain negative rake negative regulator negative resistance negative-resistance device

科学参考收录了103327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。