“low-noise preamplifier”的概念、定义、翻译、参考文献-科学参考

单词	low-noise preamplifier
释义	low-noise preamplifier [`lō ´nȯiz prē`am·plǝ´fī·ǝr] ^ELECTRONICS A low-noise amplifier placed in a system prior to the main amplifier, sometimes close to the source; used to establish a satisfactory noise figure at an early point in the system.
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