The logical coordinates are the offsets as they would be if the pixels themselves were scaled.
逻辑座标则是像素本身缩放时，跟著缩放的位移。
With your selected pixel coordinates and a single-layer base reflectivity map, the logical process for detecting precipitation near a spot on the map is straightforward.
使用选定的像素坐标和单层基本反射率图，检测地图中某个场所附近的降水的逻辑过程将十分简单。
Google does, however, offer its own service to map between logical names and coordinates, which is known as geocoding.
但是，Google确实提供了逻辑名称与坐标之间的映射服务，这称为地理编码。
The coordinate system must therefore be mapped from logical Cartesian coordinates to physical screen coordinates.
因此，坐标系统需要从逻辑坐标系转换到物理坐标系上去。
The coordinate system must therefore be mapped from logical Cartesian coordinates to physical screen coordinates.
因此，坐标系统需要从逻辑坐标系转换到物理坐标系上去。
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