【化】 channel cover
canal; duct; fistula; guarantee; meatus; pipe; tube; wind instrument
【化】 pipe; tube
【医】 canal; canales; canalis; channel; duct; ductus; salpingo-; salpinx
syringo-; tuba; tube; tubi; tubing; tubo-; tubus; vas; vaso-; vessel
box; case; casing; chest; hutch; tank
【医】 box; case; closet
cover board
【计】 cover plate; lap joint