preamplifier system是什么意思 preamplifier system怎么读
preamplifier system的相关资料
PREabbr.Petroleum Refining Engineer炼油工程师
pre-TRn.前置收发(开关)
preamplifier system的用法和样例
- According to series-wound amplifiers and noise theory, an applied circuit of low-noise preamplifier is designed using unattached components.
摘要根据级联网络及噪声理论，本文采用分立元件设计了一种低噪声前置放大器实用电路。
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