qbg
- abbr.quartz-biotite gneiss 石英-黑云母片麻岩;quartz-biotite-oliclase gneiss 石英-黑云母-奥长片麻岩
qbg-
Based on the generalized Huygens Fresnel diffraction integral , the propagation of the Bessel modulated Gaussian beams with quadratic radial dependence ( QBG beams ) through a circle apertured ABCD optical system has been studied .
基于惠更斯菲涅尔广义衍射积分，对变量为径向平方的贝塞耳函数调制的高斯光束（QBG光束）通过有圆孔光阑限制的一阶ABCD光学系统的传输进行了研究。