[KongchangAI]
Unverified80% confidenceCautionTime unknown

等高线间距通常为40英尺(约12米),在地势平缓区域地形表达不够细腻;若需在平原湿地等低起伏地区做精细地形判读,该间距可能不够用

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80%
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Long-term
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