The device consists of a small valve attached externally to each nostril with hypoallergenic adhesive.
The smaller weapons could be inserted into the larger weapon's barrel, externally attached to the barrel or mounted above the weapon.
Other early automobiles also had externally attached sun visors to their windshields until 1931, when interior mounts were introduced.
Capable of supporting 2 crew and having externally attached EVA suits.
These fungi are externally attached to cells of gills.
External vacuum sealers involve a bag being attached to the vacuum-sealing machine externally.
More memory and other disk drives will have to be attached externally.
The bed roll was attached externally (see Sleeping Bag Straps).
The semblance is made more joyful with the 'talla' attached externally to the mask giving the appearance of a toothless open mouth.
A hard drive runs about $100 to $400 and can be attached externally or installed, assuming you have a bay available on your computer.