n.字距调整
动词kern的现在分词形式.
In some cases kerning is inevitable and necessary. 有些场合这种字距调整是必不可少的。
GetKerning Get the kerning to apply between two glyphs specified by their character codes. 获得字距调整以适应在通过字符码绘画两个被指定的文字时。
