Aún no tenemos significados para "pack in air-tight".
1These sizes are packed in air-tight sheet steel drums containing 100 pounds each.
2The leaves are then dried over a fire, and after cooling are packed in air-tight chests.
3In breaking up and sending out the carbide for commercial work, packed in air-tight drums, the crust is removed by a sand blast.
4After deciding on the variety of coffee that is desired, it is well to buy unground beans that are packed in air-tight packages.