Human perception is highly imperfect and by definition subjective.人的感知具有高度缺陷，而且天性主观。an imperfect understanding of English对英语的不透彻理解Soot is the product of the imperfect combustion of fuel.煤烟是燃料不完全燃烧的产物....
Darren has been working as a rep.达伦近来一直在当推销员.A play is tested in rep before ever hitting a West End stage.一部戏在登陆伦敦西区舞台前会以常备剧目试演。If they don't like it, they can go to their state rep, right?要是他们不满意他们会去投诉的是不是?...
There is a great deal of demand in modern electronics, however, for bandpass amplifiers.然而近代电子学对调谐的频率范围很宽的带通放大器提出很多要求.This paper presents a set of all - pole bandpass filter with equal inductances.本文提出一种间隙电容耦合的微带圆盘腔带通滤波器...