知识扩展
词组短语 power amplifier功率放大器；operational amplifier运算放大器

中文词源： amplifier
精选例句

常见考点例句：

They ended up as a crisis amplifier .

而它们最终成为了危机的放大器。

It was enough for the canal to act as an amplifier for every sound in his body .

这已经足够让半规管作为体内每处声音的放大器了。

The internet has proved a powerful amplifier of public scepticism in china , especially since twitter-like services began to take off a couple of years ago .

互联网这个有力的扩音器将中国公众的怀疑之声迅速传播扩散，尤其是从几年前twitter一类服务兴起开始。

Also known as the " little plastic triangle , " it became the first working solid-state amplifier .

这个又被称之为“塑料小三角”的装置成为世界上首个能够工作的固态信号放大器。

If you only have an old turntable and no amplifier , you will need to amplify the signal using a pre-amplifier before plugging it into the pc sound card .

如果你只有一个老唱盘，没有放大器，你需要使用前置放大器将信号放大，然后再将其与电脑声卡连接。