电动第五章- docin.com豆丁网
若将中的也作相应的规换,则可保持不变电磁势能唯一确定电磁场但电磁场并不对应唯一的电磁势2 2 E B A E B A A B t A E ...
www.docin.com/p-35243933.html
www.docin.com/p-35243933.html
profit=diff (bear, bull), bear=unlimited points, bulls=unlimited levels/points