医生通常会评估身体质量以测量病人罹患换冠心病的风险，这样的一种测量方法需要参考病人的体重和身高。

Doctors often assess a patient's risk of coronary artery disease by looking at their body mass index - a measure that takes into account someone's weight and height.

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提出的测量方法、测量结果和拟合函数的建立对偏光器件的研究有一定的参考价值。

The measurement method, experimental results and the fitting function provide a reference for the polarization device research.

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这种测量方法的特点在于采用红外光信号，它一方面作为参考变量进行同步测量，另一方面还作为传输数据的通道。

The point of this measurement was making use of infrared signal, on one hand which was the reference variable, on the other hand which was the channel for the data.

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