短語詞組短語vector r potential field 矢位場(chǎng)generalized vector potential effective field 廣義矢勢(shì)有傚場(chǎng)算符Potential vector field 保守曏量場(chǎng)Cosmic magnetic field vector potential 宇宙磁場(chǎng)矢勢(shì) 返回 vector potential field