环形展开

covalently closed circular DNA, cccDNA

circular folds【解剖】;plicae circulares【解剖】;valvulae conniventes【动】

circular saw

uniform circular motion

cross-cut and ripping combination saw, circular saw for length sawing

circular waveguide standing-wave detector

covalently closed circular DNA\ncccDNA\n遗 生化

reverse plating circular knitting machine with independently-movable needles