此功能与用于进行字体替换以及呈现语言相关字体的功能相类似。

This functionality is similar to the one used for providing font substitution and language dependent font rendering.

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许多应用程序包括字体替换功能，如果指定的字体没有安装会选择尽可能密切配合的字体。

Many applications include font substitution features that choose the closest possible match if the specified font is not installed.

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对于Linux和Solaris平台，可以通过设置GDFONTPATH环境变量来替换Xserver，该环境变量指向包含True Type字体(即ttf和TTC)的字体目录。

For Linux and Solaris platforms, Xserver is replaced by setting a GDFONTPATH environment variable pointing to the font directories containing True Type fonts, that is, TTF and TTC.

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