hairline

n. 发际线, 细缝, 细微的区别
【机】 细标线

hair.line

n.（名词）
The outline of the growth of hair on the head, especially across the front.
发际线：头部头发生长的外型，尤其是前额头发的轮廓
A very slender line.
细长的线：一根非常纤细的线
Printing
【印刷术】
A very fine line on a typeface.
铅字表面的细线
A style of type using such lines.
使用这种细线的铅字


A textile design having thin, threadlike stripes.
有细直条纹的织物图案
A fabric, usually a worsted, with such stripes.
有这种条纹的织物，通常是精纺呢