向后 towards the back; backward; retral; rursus 向后看 look back; 向后撤 withdraw; 向后转! (口令) about face!; about turn! 向后转走! (口令) to the rear, march
秋后算帐 square accounts after the autumn harvest -- settle accounts with sb. afterwards; rake things up against sb.; wait one's opportunity to settle accounts with sb.; wait until after a political movement is over to settle accounts with the leadership or the masses◇秋后算帐派 people who bide their time to take revenge
Two image mapping algorithms of the volume rendering , forward mapping and backward mapping are researched on the basis of optical model for volume rendering . combined with the characteristic of a series of section images from laser confocal scanning microscopy , the volume buffer algorithm and maximizing algorithms are proposed in this paper . 4 同时在探讨体绘制光学模型的基础上,研究了体绘制的两种图像合成算法,即由前向后算法和由后向前算法,并结合激光共聚焦扫描显微成像系统序列断层荧光图像的特点提出了体缓冲器算法和最大值算法。