Only transformer coupling can contribute to the voltage gain of an amplifier by virtue of a stepup turns ratio . 只有放大器耦合方能通过开压匝数比提高变压器电压增益。
It is important to connect the transducer and amplifier by a low-capacitance, low-noise, coaxied cable . 传感器和放大器之间的联结采用低容抗，低噪音的同轴电缆是很重要的。
What are the chances that i will blow one of my stereo speakers if i turn my 200-watt amplifier up to wide open ? 如果把200瓦的扩音机开到最大，立体声喇叭烧坏的可能性有多大？
Actuation of one clutch provides positive torque to the final drive, the capstan acting as the main power amplifier . 一个离合器的作用是给最后一级传动机构，即作为主功率放大器的绞盘，提供正向力矩。
General specification for microwave broadband amplifiers 微波宽带放大器通用规范
Electronic amplifiers make music penetrating 电子打主意器使音乐变得有穿透力。
Purpose : audio frequency power amplifier applications 用途:用于音频功率放大。
Electronic amplifiers made the music penetrating 电子扩音器使音乐变得有穿透力。
Experiment of cladding pumped femtosecond fiber amplifier 光纤放大器的实验研究
General specification for military rf power amplifier 军用射频功率放大器通用规范
