The difference between the true or reference value and the observed average of multiple measurements of identical characteristic on the same part.
标准测量偏差对同一部件的某一可识别特征多次测量的平均观察值与真值或参考值之间的差异。
IMT is often measured deliberately where no plaque exists, or multiple measurements may be averaged, including only one or two that intersect plaque.
动脉中膜厚度测量通常有意测量没有斑块,或者多次测量取平均值,包括一次或两次测量相同的斑块部位。
Resection is used to determine the coordinates of an instrument station by performing multiple measurements of points whose coordinate values are known .
后方交会是利用在未知点上对若干已知点进行观测,获得的观测值来计算出未知点的坐标。
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