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Continuous ink system in an HP Business Inkjet 1200n. The ink is transported from tanks through the black flexible band, which is vertically rigid so it does not fall into the path of the printhead and cause a jam. Close-up view of the above printer, showing the individual removable printheads and ink tanks for each color.
Soldiers advancing under the cover of a smoke screen during a training exercise. A smoke screen is smoke released to mask the movement or location of military units such as infantry, tanks, aircraft, or ships. Smoke screens are commonly deployed either by a canister (such as a grenade) or generated by a vehicle (such as a tank or a warship).
The M728 vehicle is used for breaching, obstacle removal, and pioneering operations. Although the M728 consists of a tank hull and a short-barreled turret, it is not a tank and should not be routinely used against enemy tanks. It is an excellent heavy assault support vehicle when used as part of a combined engineer-infantry team.
The screen-door effect (SDE) is a visual artifact of displays, where the fine lines separating pixels (or subpixels) become visible in the displayed image. This can be seen in digital projector images and regular displays under magnification or at close range, but the increases in display resolutions have made this much less significant.
The Remington Model 580, 581, and 582 are a family of bolt-action rifles, manufactured from 1967 to 1999. The rifles were introduced as a replacement for the previous Model 511 . The 580 series was a lower-cost rifle patterned after the contemporary Model 788 centerfire rifle and shares that rifle's rear-locking bolt.