According to the direct or indirect sign of the interpretation (such as tone, image texture, shadow), it expounds various geological feature in TM image from geomorphy, tectonics, ecology etc.

• 并根据色调、影纹结构、阴影等各种直接或间接解译标志，从地貌、地质构造、生态等方面着手，论述了其在TM影像上的特征。