The instrument error that contributes to the greatest variability is the cuff size of the sphygmomanometer. 变异性中占比例最大的设备误差是血压计袖套的大小。
The stability of these illative number and efficiency sex can pass opposite deviation and square root of relatively average error to evaluate. 这些推定数的稳定性和效率性可以通过相对偏差和相对平均误差平方根来评价。
In the case of new machines, total depreciation is usually relatively small, tending to minimize the error in estimating depreciation. 对于新的机器，总的陈旧贬值往往比旧的相对小，使得估算贬值的差错也减到最小。
