To measure resolution, consider a line pair -> i.e. the wall is a line but to differentiate it, there must be a contrasting equal width along side.

我们可以把长城看作是一对线耦来测得分辨率，比如说把长城当作一条线来分辨，那么这条线两边都要以长城同等的宽度来分辨。

youdao

For line art, it is indeed appropriate to scan to match the dpi resolution of your printer (I said line art, I intentionally excluded Colour and Grayscale).

线艺术这是很适当的扫描，以配合分辨率印表(我说艺术系，我故意把颜色和灰度)。

youdao

For line art, it is indeed appropriate to scan to match the dpi resolution of your printer (I said line art, I intentionally excluded Colour and Grayscale).

线艺术这是很适当的扫描，以配合分辨率印表(我说艺术系，我故意把颜色和灰度)。

youdao