究其原因，多为加工系统所存在的某些系统性和随机性误差。
The main reason of this is some system and trandom errors existing mainly in processing system.
利用此法，能计算结构静响应的均值和标准差，估价制造误差引起的结构力学性能的随机性误差。
We can use this method to calculate the mean values and standard deviations of the responses, and estimate the stochastic errors of structural characters resulting from the fabrication errors.
该模型有自组织和自学习的功能，可以根据每次学习误差的不同，不断调整学习速率，加速收敛过程，充分排除数据样本的随机性影响。
The network model can organize and study itself, according to different study error, continuously adjust the study rate, and accelerate refrain process, expel influence of the data sample.
用有限元方法分析结构固有频率时，利用这个方法能正确估计由于结构参数的随机性而产生的误差。
Using this method engineers are able to estimate the errors of structural natural frequencies caused by random structural parameters in finite element analysis.
为了选择综合随机性和确定性的性能评价策略，提出了一种基于误差预报的控制系统综合性能评价方法。
In order to select comprehensive stochastic and deterministic performance assessment strategy for control system, the method based on error prediction is proposed.
导致机械误差的因素往往具有随机性，因此，机构的输出误差也是随机量。
The factors leading to mechanical error are probabilistic variables in general, so the outputs of linkages are probabilistic ones too.
导致机械误差的因素往往具有随机性，因此，机构的输出误差也是随机量。
The factors leading to mechanical error are probabilistic variables in general, so the outputs of linkages are probabilistic ones too.
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