这种情形中最大的错误在于使用了光栅图而非矢量图。

The bigger mistake, in this case, is using raster rather than vector images.

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设置更改后，每当使用未初始化的变量、进行错误的文件访问及发生其他（大多数）无害错误时，PHP 都会报告一条警告消息，但也存在这是一个潜在攻击矢量的可能性。

This will result in PHP reporting a warning every time an uninitialized variable is used, each bad file access, and other (mostly) harmless errors, but might also represent a potential attack vector.

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实验结果表明，该方法能快速找到并定位设计中的错误，生成模拟矢量效率更高。

Experimental results show that the method is efficient for finding the design errors and vectors generation.

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