Adding XPath expressions to the exception message, as shown in Listing 7, results in a more detailed description of the validation failure, which greatly simplifies locating the problem.

如清单7所示，添加XPath表达式到异常消息将产生更详细的对验证失败的描述，这样大大方便了发现问题。

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AE source locating and its relevant techniques are key to this method, because precise determination of AE sources is the basis for analysis of deformation and failure processes using AE data.

AE源定位及相关技术是AE研究中的核心技术，精确地确定AE源的位置，是依据AE资料分析岩石变形破坏过程的基础。

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Error locating for form data field because of form image deforming, skew, noise and shift when printing and so on will lead to data extract failure.

表单图像变形、倾斜、噪声干扰、打印错位等问题往往使表单的数据域定位不准确，从而导致表单数据域提取失败。

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