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, ...
This paper describes the principle of microprocessor ultrasonic range finder.主要介绍微电脑超声测距仪的工作原理.A Control System of VVVF Elevator with Single Chip Microprocessor and PLC.PWM逆变器 型交流电梯紧急自动疏散系统.I’ve got a typerwriter with a ...
He brought to the job not just considerable experience but passionate enthusiasm.他不仅给这一工作带来了不少经验，而且倾注了极大的热情。Mahler was also known for his passionate involvements outside marriage.马勒也因为其轰轰烈烈的婚外情而出名。We were both very tende...
警察如果遵守这些规定的话，一年都活不了。A policeman would not live one year if he obeyed these regulations.出租车必须遵守警方的严格规定。Taxis must conform to the rigorous standards laid down by the police.有些海滩未能遵守欧洲有关浴场的指令。Some beaches had failed to comp...