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An overwrap or wrap is a method of sealing a contained product, typically as part of retail packaging. It is often made of plastic film (sometimes called polywrapping) or paper. [1] The wrap is applied over the bare product or can be applied over another form of packaging. It is typically used to protect products, but can be used decoratively.
A cutaway drawing is a technical illustration, in which part of the surface of a three-dimensional model is removed in order to show some of the model's interior in relation to its exterior. The purpose of a cutaway drawing is to "allow the viewer to have a look into an otherwise solid opaque object.
A working drawing is a type of technical drawing, which is part of the documentation needed to build an engineering product or architecture. Typically in architecture these could include civil drawings , architectural drawings , structural drawings , mechanical drawings , electrical drawings , and plumbing drawings .
Next, the original is peeled from the diazo paper as the sandwich of master and diazo exits the machine, and the diazo sheet alone is fed into the developing chamber. Here, fumes of ammonium hydroxide create an extremely alkaline environment. Under these conditions, the azodyes (couplers) react with the remaining diazonium salt and undergo a ...
Surface printing machines are structured similarly to a ferris wheel, with a large central roller that the paper travels over. Up to 12 individual ink rollers transfer an image to the paper on the main roller, laying down heavy amounts of ink. [4] [5] Because the ink is pushed onto the paper, the images are not as crisp as the other methods.
Sometimes described as a prototype of modern tanks, Leonardo's armored vehicle represented a conical cover inspired by a turtle's shell. The covering was to be made of wood and reinforced with metal plates. Slanting angles would deflect enemy fire, similar to sloped armour today. The machine was powered by two large cranks operated internally ...
Antiroll tanks are tanks fitted onto ships in order to improve the ship's response to roll motion. Fitted with baffles intended to slow the rate of water transfer from the port side of the tank to the starboard side and the reverse, the tanks are designed such that a larger amount of water is trapped on the higher side of the vessel.
For the paper strips method, the paper is cut or torn into strips, and soaked in the paste until saturated. The saturated pieces are then placed onto the surface and allowed to dry slowly. The strips may be placed on an armature, or skeleton, often of wire mesh over a structural frame, or they can be placed on an object to create a cast. Oil or ...