然后通过引入降阶观测器，得到一个误差系统。

Then, by introducing a reduced-order observer, an error system is obtained.

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介绍了基于VB 6.0的一套计算机辅助计算定位误差系统的开发。

A computer aided solving system of orientation tolerance based on VB6.0 is introduced.

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利用李亚普诺夫函数分析了误差系统的稳定性，说明误差是指数收敛的。

The stability of the error system is analyzed by a Lyapunov function, which shows that the errors are exponential convergent.

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So if there's any systematic bias going on in the way these things get graded it'll smooth itself out across the teaching fellows, so we'll have a fair grading system and things.

所以,如果在评分过程中,有任何系统性误差,都会由助教们尽量纠正过来,这样就有了公平的评分系统

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选