环形截面的短路流道
short circuit flow of ring section
羧基末端截短的表面抗原中蛋白
C-terminally truncated middle surface protein
切角的H面、E面弯角
H-plane and E-plane bends with a corner cut
凸集的面的结构
facial structure of convex sets
T形截面短柱
T-shaped section short column
表面短裂纹
surface short fatigue crack