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Detector internal preamplifier after weak electric signal amplification, comparing to send alarm processing.
检测器内部的前置放大器将微弱的电场信号放大后，送报警器进行比较处理。
youdao
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Detector internal preamplifier after weak electric signal amplification, comparing to send alarm processing.
检测器内部的前置放大器将微弱的电场信号放大后，送报警器进行比较处理。
youdao