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  2. Sprayer - Wikipedia

    en.wikipedia.org/wiki/Sprayer

    Sprayers range in size from man-portable units (typically backpacks with spray guns) to trailed sprayers that are connected to a tractor, to self-propelled units similar to tractors with boom mounts of 4–30 feet (1.2–9.1 m) up to 60–151 feet (18–46 m) in length depending on engineering design for tractor and land size.

  3. Spray nozzle - Wikipedia

    en.wikipedia.org/wiki/Spray_nozzle

    The simplest single fluid nozzle is a plain orifice nozzle as shown in the diagram. This nozzle often produces little if any atomization, but directs the stream of liquid. If the pressure drop is high, at least 25 bars (2,500 kPa; 360 psi), the material is often finely atomized, as in a diesel injector.

  4. Jet pack - Wikipedia

    en.wikipedia.org/wiki/Jet_pack

    In the most general terms, a jet pack is a wearable device which allows the user to fly by providing thrust.With the exception of use in a microgravity environment, this thrust must be upwards so as to overcome the force of gravity, and must be enough to overcome the weight of the user, the jet pack itself and its fuel.

  5. Spray tower - Wikipedia

    en.wikipedia.org/wiki/Spray_tower

    Typical countercurrent-flow spray tower. A spray tower (or spray column or spray chamber) is a gas-liquid contactor used to achieve mass and heat transfer between a continuous gas phase (that can contain dispersed solid particles) and a dispersed liquid phase.

  6. Backpack - Wikipedia

    en.wikipedia.org/wiki/Backpack

    A backpack—also called knapsack, schoolbag, rucksack, pack, booksack, bookbag, haversack, packsack, or backsack—is, in its simplest frameless form, a fabric sack carried on one's back and secured with two straps that go over the shoulders; but it can have an external or internal frame, and there are bodypacks.

  7. All-purpose lightweight individual carrying equipment - Wikipedia

    en.wikipedia.org/wiki/All-purpose_Lightweight...

    The all-purpose lightweight individual carrying equipment (ALICE) is a set of load-carrying equipment adopted as United States Army Standard A on 17 January 1973 [1] to replace the M-1956 individual load-carrying equipment (ILCE) and M-1967 modernized load-carrying equipment (MLCE).

  8. Seed drill - Wikipedia

    en.wikipedia.org/wiki/Seed_drill

    Filling a feed-box of a seed drill, Canterbury Agricultural College farm, 1948 A seed drill is a device used in agriculture that sows seeds for crops by positioning them in the soil and burying them to a specific depth while being dragged by a tractor.

  9. Spray pond - Wikipedia

    en.wikipedia.org/wiki/Spray_pond

    Specific spray pond surface areas tend to range between 1.2 and 1.7 m 2 per m 3 /h of water to be cooled. The width chosen for a drift channel around the active zone of the pond (containing the sprays) is dependent on a number of factors, including the prevailing wind strength, the average size of the spray droplets produced by the nozzles, and the presence of any nearby structures which may ...

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