A skin symptom fuzzy inferential system based on semantic network is proposed by introducing the fuzzy inference to recognition and classification of skin microscopic images.

This paper expounds several huge damages on the natural environment in our country since the founding the our People's Republic,analyzes on the typical symptoms and geneses of our country's current environment problems,puts forward some measures for solving these environment problems,and points out that must solve the contradiction between the human being and the nature on the philosophical level.

Occurrence and the types of symptoms of lily virus diseases;