【机械工程】汽缸衬筒、湿的【运输】汽缸套，湿的

cylinder

two-cylinder lithographic proof-print press

oxygen cylinder car

threshing cylinder with ribs (beater-bar threshing cylinder)

diaphragm cylinder, spring-loaded cylinder

cylinder lock with both tumbler pins and plate tumblers

cylinder head cooling

V-type eight-cylinder engine