本文研究了V波段四倍频器的设计和研制方法.This thesis presents the design and manufacture of a V - band frequency quadrupler.这种倍频器可以满意地用作为某型测速雷达的输出级.This frequency multiplier may be used satisfactorily as the output stage some velocity radar...
His quick recovery is ascribable to his sound constitution.他的迅速康复是由于他的健全的体质.Is his failure ascribable to incompetence or to bad luck?他的失败是因为无能还是因为运气坏?Therefore, any changes in the cell are ascribable to the working elect...
Many entry-level jobs were filled by school leavers.很多初级水平工作都由中学毕业生来做。the problem of rising unemployment among school-leavers毕业生失业人数不断增长的问题For example, they complain that many school - leavers cannot speak clearly.比如, 他们...
Nothing happens until the excitatory stimulus exceeds a certain'threshold'value.兴奋性刺激超过某一临界值以前毫无反应.Glutamate ( Glu ) is the main excitatory neurotransmitter in the central nervous system ( CNS ) .谷氨酸 ( Glu ) 是 ...