通过实例探讨了正反馈在放大电路中的应用.This paper discusses the application of positive feedback in amplifiers.正反馈放大器是信号级 脉冲形成电路 的基础.Amplifiers with positive feedback are the bases of signal - grade pulse - forming circuits .这种控制方法虽然是有效的, ...
她终于找到了理想的礼服——一袭饰有蕾丝的美丽长裙。She finally found the perfect gown, a beautiful creation trimmed with lace.齐膝长裙既不显身材又不好看。The knee-length dresses were unflattering and ugly.她身穿一袭黑色长裙。She is wearing a long black dress....
他的办公室与其身份和阅历相称。His office was in keeping with his station and experience.有人担心他会因丑闻而辱没了身份。There were fears he would be dragged down by the scandal.死者的身份现在已经确定。The identities of the deceased have now been determined....