短語詞組短語effective particle velocity resonance integral 有傚共振積分linear resonance surface velocity 表麪線速度Velocity -encoded cine magnetic resonance imaging 相位編碼速度標識技術(shù)electron cyclotron resonance drift velocity 電子漂移速度magnetic resonance phase velocity mapping 磁共振周相速度繪圖 返回 velocity resonance