他，一双小眯缝眼镶嵌在胖乎乎的脸上，圆乎乎的脑袋后还留着一根小辫子，长得虎背熊腰，人送外号号“许小胖”，他就是我们班的许帅坤宇。

He, a pair of little squinty Mosaic in chubby face, after the round head also has a small plait, kind of, man nicknamed "xu xiao pang", he is our class huh handsome kun yu.

youdao

求出了双光子系统的所有的波函数，这些波函数所代表的态都有一定的角动量和宇称，并且有系统地分析了这些态中光子的偏振情况。

All the wave function of a two-photon system with definite angular momentum and parity are found out, the polarization states of photons systematically analyzed.

youdao

求出了双光子系统的所有的波函数，这些波函数所代表的态都有一定的角动量和宇称，并且有系统地分析了这些态中光子的偏振情况。

All the wave function of a two-photon system with definite angular momentum and parity are found out, the polarization states of photons systematically analyzed.

youdao