数据集 群组 活动流 群组 Biota Flora and/or fauna in natural environment. Examples: wildlife, vegetation,... 浏览Biota Boundaries Legal land descriptions. Examples: political and administrative boundaries 浏览Boundaries Elevation Height above or below sea level. Examples: altitude, bathymetry, digital... 浏览Elevation Inland Waters Inland water features, drainage systems and their characteristics. Examples:... 浏览Inland Waters Transportation Means and aids for conveying persons and/or goods. Examples: roads,... 浏览Transportation
