Tu zhi xue yu tu li xue
Description
Ben shu xi tong di jie shao le tu zhi xue yu tu li xue de ji ben yuan li he fen xi ji suan fang fa, Nei rong bao kuo tu de wu li xing zhi ji gong cheng fen lei, Zhan xing tu de wu li hua xue xing zhi, Tu zhong shui de yun dong gui lu˜, Tu zhong ying li ji suan deng nei rong.