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pH计是测量溶液酸度的仪器,它的测量电极与被测介质是直接接触的,因此电极表面易被介质沾污,影响测量的准确性。为了使pH计的检测、控制系统达到应有的效
pH meter is a measure of acidity of the instrument, its measuring electrode is in direct contact with the measured medium, so the electrode surface easily contaminated by media, affecting the accuracy of measurement. In order to test the pH meter, the control system achieves the desired effect