microsecond switch开关: Q-switching微秒: micro second; microseconds; msec; orders of magnitude; subtlety; usec毫秒开炸: milli-second blasting光微秒: light microsecond毫微秒: billisecond; millimicrosecond; nanosecond (ns)◇毫微秒计时器 chronotron下载手机词典可随时随地查词查翻译