1)vortex of vector field,向量场的旋涡2)rotation of vector field,向量场的旋转3)vortex free vector field,无涡向量场4)lines of eddy electric field,涡旋电场的场线5)Rotation of the transverse intensity pattern,横向光场涡旋6)vortex field measurement,旋涡流场测量
用法和例句
The lines of eddy electric field that is excited by approach to steady current,have two cases:①each of the line is closed;②two ends of the line extend to infinity.
