许多地图缩放等级。

Many Map Zoom levels.

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许多地图已被创建和使用，但是在地理信息系统初期，地图的质量往往不能被接受。

Many maps have been created and used, but during the beginning of the GIS era map quality was not always acceptable.

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它意味着我们要认识到瑞恩和许多美国人并不是为了地图上的一个地点或者某一类人而战斗和牺牲的。

It means we should understand that what Ryan and so many Americans fought and died for is not a place on a map or a certain kind of people.

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