两边对齐的正文
text justified to both margins
多档案带上的正向间隔档案
forward space file on multifile tape
全迷向正的截曲率
Positive curvature on totally isotropic two-plane
软件的正向工程
Obverse engineering for software
讯息导向的文字交换系统
message-oriented text interchange system
正向对称延拓
forward symmetry extension
左右向的总间隙
clearance in the sideways