A pattern of regularly spaced horizontal and vertical lines forming squares on a map,a chart,an aerial photograph,or an optical device,used as a reference for locating points.

• 网格，坐标方格在地图、设计图、航空图片或光学仪器上由规则放置的平行和垂直的结构成的，用来作为标明各点位置的参照的图案。