dpi、lpi、ppi,是大家既熟悉又说不清它们在什么场合下出现,所表达的具体含义是什么的3个英文缩写单位。 dpi最早是作为表示电子照排输出精度的言词而出台的,原文是dot per inch,意指一英寸中有多少个点子,数字愈大,表示愈精密。比 dpi, lpi, ppi, is that we are familiar with and can not tell where they appear under what circumstances, the specific meaning of what is expressed in the three abbreviations in English units. dpi was first introduced as a verbal expression of the accuracy of electronic photo-finishing. The original is dot per inch, meaning how many dots in an inch, the larger the number, the more precise it is. ratio