四、波动方程、标量位、矢量位 OZE VEE-uE=0 at O2H ⅴ2H-6a 0 V×A=B V·A=-E at aA E+-=-VO V A+OuEA=-uv V+O26=四、波动方程、标量位、矢量位 2 2 2 2 2 2 0 0 E E t H H t − = − = 2 2 2 2 A B A t A E t A A J = = − + = − + = − + = −