文字或线条用阴纹来印刷，露出的是纸白。通常使用反白这个功能让图文不填入任何颜色，以对比的方式来表现。
不应当混合无关颜色，而且颜色不应当反白。
Unrelated colors should not be mixed, and colors should not be reversed.
白口和反白口缺陷是球铁件转向节的常见缺陷。
Both the chill and reverse chill are defects often found in the nodular iron knucle castings.
这样就会认可反白显示的符号，就像完成模式一样。
The highlighted symbol is committed, just as it is in completion mode.
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