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句子翻译：All of the important signal characteristics can be deduced from the copy of the spectrum that appears in the baseband through sampling.
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句子翻译：Signal conditioning circuits are, in reality, analog signal processors, performing such functions as multiplication (gain), isolation (instrumentation amplifiers and isolation amplifiers), detection in the presence of noise (high common-mode instrumentation amplifiers etc. ), dynamic range compression (log amps, LOGDACs, and programmable gain amplifiers), and filtering (both passive and active)
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电位法测定溶液的pH常选用的指示电极是:
离子选择性电极电位产生的机制为:
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