传统的波动法血压无创测量技术由于利用了统计学原理，因此必然造成测量时的个体误差。
The traditional blood pressure measurement by oscillometric method is based on statistics theory, so there is always private systematic error in measurement.
不仅风险预测站不住脚，而且即使是不用于群体而只用于个体，其误差之大以至于结果失去意义。
Not only is risk prediction unreliable but, when applied to individuals rather than groups, the margins of error are so high as to render any result meaningless.
相反微观交通模型通过描述车辆个体行为，对交通状况做出较为细致的模拟，当模拟时间长度过大，与现实交通状况之间的误差越来越大。
On the other hand, when using Microscopic Traffic Model to describe the action of vehicles and stimulate the traffic in a meticulous way, the error will be big if the mimic time is long enough.
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