【电学】桶形失真修正，重点修正

water barrel (water cask), water tank

barrel-type grinding machine

barrel gauge (plug gauge)

bale, casc (barrel), wood, roller, stone, vacuum-gripper, two-arm gripper

barrel liner【油气】;bush【机】;bushing【机】

Boler-core, core barrel

core barrel【地质】;double-tube core【地质】;inner tube【油气】

double barrel colostomy