The validator method receives the user's input as a parameter and may return an error message, which is stored in a JSP variable named validationError.

validator 方法将用户输入作为参数，并且可能会返回一条错误消息，保存在一个名为 validationError 的 JSP 变量中。

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The error of expansion model and the method of getting scheduling variable were proposed.

分析了平衡流形展开模型的误差，给出了调度变量的确定方法。

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To overcome the long test time and big error in single variable open loop step test method, a novel identification method based on asymptotic theory (asym) is presented.

为克服传统单变量开环阶跃测试法测试时间长和误差大的缺点，提出一种基于渐进黑箱理论的多变量辨识方法。

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