Winter 1941, the German army on the use of accurate maps.
1941年冬季后，德军使用上精确的地图。
It was not until the 14th century that more accurate maps began to appear.
直到14世纪较精确的地图才开始出现。
The pictures can be very valuable and can be used to make more accurate maps.
这些图片可以是极有价值的，也可以用来制出更精确的地图。
The pictures can be very valuable and can be used to make more accurate maps.
这些图片可以是极有价值的，也可以用来制出更精确的地图。
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