millimicrosecond英美n. 毫微秒;10的负九次方秒计算机双语例句Research on spiral strip line generator for obtaining millimicrosecond pulsed high voltage产生毫微秒脉冲高压的螺旋形带状线发生器的研究The generation and display of millimicrosecond pulses亳微秒脉冲的发生和显示