catenary
n. 链;悬链线;链状物; adj. 悬链线的;垂曲线的
[数]n.悬链线;adj.悬链线的
arenation cricothyroid holeproof imploration legible reclosable shear下载迅蛙App
n. 链;悬链线;链状物; adj. 悬链线的;垂曲线的
[数]n.悬链线;adj.悬链线的
arenation cricothyroid holeproof imploration legible reclosable shear