preamplifier
/priːˈæmplɪfaɪə(r)/noun
- an electronic device that amplifies a very weak signal, for example from a microphone or pickup, and transmits it to a main amplifier前置放大器。
| 单词 | preamplifier |
| 释义 | preamplifier/priːˈæmplɪfaɪə(r)/noun
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