hash mark

hash-mark的词性：
n.（名词）

1. A service stripe on the sleeve of an enlisted person's uniform.
袖章：军人制服袖子上表示等级的条纹

2. Football A mark in either of two series placed on the field perpendicular to the yard lines and used for spotting the ball.
【橄榄球】 界内虚线：用于确定球的位置的与场地界线垂直的两条线

hash-mark的词源：

3. Alteration of hatch ³
hatch³的变化