1·The vector sum of the angular momentums of each component particle of an extended body.
动量矩伸展体的每个组成微粒的角动量的矢量值。
2·The electronic structures and the magic angular momentums in the quantum dots are analyzed with the symmetry constraints.
用对称性分析了量子点中幻角动量和电子结构。
3·An introduction is given to the basic definition and conception of the angular momentums of the light field, and the angular momentums of a variety of cylindrical symmetric beams.