The principle of the former is to control character height like stylus printer while the principle of the latter is quite different.
前者的字符高度的控制方法类似针式打印机，而后者的控制原理则完全不同。
The principle of the former is to control character height like stylus printer while the principle of the latter is quite different.
前者的字符高度的控制方法类似针式打印机，而后者的控制原理则完全不同。
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