亦称字尺
Also known as word ruler
以上为机器翻译结果，长、整句建议使用 人工翻译 。
行数尺：量度字体大小和配稿用尺。亦称字尺。
Line gauge: Measuring ruler used for copyfitting and measuring type. Also called Type gauge.
youdao
亦称字尺。
Also called Type gauge.
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