[KongchangAI]
Unverified92% confidenceFactTime unknown

该系列地形图的等高线精度和坐标系统基于国家测绘标准,在地形高程信息的权威性和准确性上优于商业地图产品,是专业地质、水利、规划工作的基础数据来源

1
Sources
92%
Confidence
Long-term
Relevance
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First Seen

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