词汇	dark off
释义	dark off 飞快地走开
随便看	land sales land sales company land sale tax land sali-alkalization land salinization land saltation land sandy desertification landsat landsat-5 landsat bands Landsat color ratio composite image landsat coregistered principal component image landsat coverage landsatellite land satellite landsat follow on mission Landsat Follow-on program landsat image landsat image processing LANDSAT image processing landsat imagery land satisfactorily landsatland satellite landsat multispectral scanner landsat photograph