With an amplifying device like a microphone, the speaker can use a natural tone.
有了麦克风之类的扩音装置，演讲者就可以使用自然的音调。
The utility model relates to a double-way pumping source pulse optical parameter oscillating amplifying device.
本实用新型涉及一种双向泵浦脉冲光参量振荡放大装置。
The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.
所述第二放大装置经由输出匹配电路以及包含传输线的第二阻抗变换器连接到所述求和结 点。
Low cost high-frequency device, high-frequency amplifying method, radio communication device and mobile phone.
低成本高频装置，高频放大方法，无线通信装置和移动电话。
Transistor: Solid-state semiconductor device for amplifying, controlling, and generating electrical signals. Invented at Bell Labs (1947) by John Bardeen, Walter H. Brattain, and William B.
晶体管：用于放大、控制和生产电信号的半导体器件，是贝尔电话实验室的三位美国物理学家巴丁、布喇顿和肖克莱于1947年所发明；
Of an electronic circuit or device; having an output proportional to input; amplifying or attenuating all frequencies equally.
说明一种电子电路或器件，其输出和输入成比例，对所有的频率都。
An amplifying type (or analog) device, as opposed to digital device.
放大器类(或模拟)器件，相对于数字器件而言的。
An amplifying type (or analog) device, as opposed to digital device.
放大器类(或模拟)器件，相对于数字器件而言的。
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