Kai guan wen ya dian yuan de she ji he ying yong

Ben shu zhu yao jie shao kai guan wen ya dian yuan de ji ben yuan li, She ji fang fa ji ying yong. Quan shu gong fen 11 zhang, Nei rong bao kuo:PWM kai guan dian lu tuo pu, Ruan kai guan ji shu, Kai guan dian yuan kong zhi xi tong de yuan li, Chang yong dian li dian zi qi jian, Gong lü dian lu de she ji deng.