Sylvia, camera in hand, asked, "Where do we go first?"西尔维娅手里拿着相机问道：“我们先去哪里？”I saw them making their way, hand in hand, down the path.我看到他们手拉手沿着小路往前走去。For us, research and teaching go hand in hand.对我们而言，研究和教学是齐头并进的。...
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...