8pt： t型字 数字：2mm×3。5mm 汉字：2。5 mm×3。5 mm r型字 数字：2。5mm×3。5mm 汉字：2。5 mm×3。5 mm 9pt： t型字 数字：2mm×3。5mm 汉字：3 mm×3。
5 mm r型字 数字：3mm×3。5mm 汉字：3。5 mm×3。5 mm 10。5pt： t型字 数字：3mm×3。5mm 汉字：3。5 mm×3。5 mm r型字 数字：3。5mm×3。5mm 汉字：3。
5 mm×3。5 mm 18pt： r型字 数字：5。5mm×3。5mm 汉字：5。5 mm×3。5 mm 附：pt的意思（如8pt）：font-size：字体大小，单位分为px（象素）和pt（磅），一般我们常用的是象素尺寸为12px或者11。
5px，磅的大小为9pt或者8pt，两种单位最终显示的大小都是一样的，用哪种单位就看个人习惯了。
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