a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
同义词：reticule, graticule
reticle详细解释
ret.i.cle n.（名词）A grid or pattern placed in the eyepiece of an optical instrument, used to establish scale or position.标线片，标线：置于光学仪器目镜中的格子或图式，用以确定大小或位置 来源：Latin rôticulum [diminutive of] rôte [net] 拉丁语 rôticulum [] rôte的小后缀 [网]
