Aspirate the reference solution after every third calibration or test solution to check stability of base line. Calculate standard deviation for every third solution aspirated.
在对被测试溶液进行三次校准后，就要抽取标准溶液进行校验其基线的稳定性，并计算每三次抽取的溶液的标准偏差。
May I check your temperature, blood pressure, and pulse rate as the base line measure for the hospital record?
现在需要给你测量一下你的体温、血压、脉搏。
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