Add some comment of CrossMapNormalFunc
Add some comment of CrossMapNormalFunc

cxysteven/Paddle,luotao1/Paddle,reyoung/Paddle,pengli09/Paddle,lispc/Paddle,lispc/Paddle,luotao1/Paddle,jacquesqiao/Paddle,putcn/Paddle,QiJune/Paddle,hedaoyuan/Paddle,yu239/Paddle,lispc/Paddle,PaddlePaddle/Paddle,hedaoyuan/Paddle,emailweixu/Paddle,yu239/Paddle,hedaoyuan/Paddle,pkuyym/Paddle,yu239/Paddle,PaddlePaddle/Paddle,putcn/Paddle,lispc/Paddle,PaddlePaddle/Paddle,wen-bo-yang/Paddle,wen-bo-yang/Paddle,emailweixu/Paddle,livc/Paddle,lcy-seso/Paddle,pengli09/Paddle,pengli09/Paddle,luotao1/Paddle,jacquesqiao/Paddle,wen-bo-yang/Paddle,lispc/Paddle,jacquesqiao/Paddle,Canpio/Paddle,gangliao/Paddle,yu239/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,PaddlePaddle/Paddle,pengli09/Paddle,Canpio/Paddle,emailweixu/Paddle,luotao1/Paddle,putcn/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,pengli09/Paddle,Canpio/Paddle,cxysteven/Paddle,lispc/Paddle,tensor-tang/Paddle,lispc/Paddle,reyoung/Paddle,lcy-seso/Paddle,baidu/Paddle,lcy-seso/Paddle,cxysteven/Paddle,emailweixu/Paddle,pengli09/Paddle,cxysteven/Paddle,pkuyym/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,livc/Paddle,wen-bo-yang/Paddle,cxysteven/Paddle,chengduoZH/Paddle,livc/Paddle,QiJune/Paddle,chengduoZH/Paddle,jacquesqiao/Paddle,emailweixu/Paddle,livc/Paddle,tensor-tang/Paddle,yu239/Paddle,livc/Paddle,jacquesqiao/Paddle,QiJune/Paddle,luotao1/Paddle,baidu/Paddle,gangliao/Paddle,wen-bo-yang/Paddle,hedaoyuan/Paddle,wen-bo-yang/Paddle,pengli09/Paddle,gangliao/Paddle,lcy-seso/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,Canpio/Paddle,hedaoyuan/Paddle,gangliao/Paddle,hedaoyuan/Paddle,emailweixu/Paddle,baidu/Paddle,yu239/Paddle,lcy-seso/Paddle,jacquesqiao/Paddle,emailweixu/Paddle,chengduoZH/Paddle,pkuyym/Paddle,chengduoZH/Paddle,putcn/Paddle,cxysteven/Paddle,baidu/Paddle,reyoung/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,hedaoyuan/Paddle,putcn/Paddle,yu239/Paddle,gangliao/Paddle,QiJune/Paddle,pkuyym/Paddle,livc/Paddle,lispc/Paddle,cxysteven/Paddle,wen-bo-yang/Paddle,putcn/Paddle,gangliao/Paddle,baidu/Paddle,pkuyym/Paddle,yu239/Paddle,reyoung/Paddle,pengli09/Paddle,pkuyym/Paddle,Canpio/Paddle,reyoung/Paddle,gangliao/Paddle,lcy-seso/Paddle,luotao1/Paddle,Canpio/Paddle,QiJune/Paddle,hedaoyuan/Paddle,Canpio/Paddle,luotao1/Paddle,livc/Paddle