Deutsch: Dachstruktur / Español: Estructura del techo / Português: Estrutura do telhado / Français: Structure de toit / Italiano: Struttura del tetto /

Roof refers to the assembly of interacting components designed to weatherproof and normally to insulate a buildings surface, separated from adjacent assemblies by walls or changes in elevation. A roof structure refers to the framework or framework system that supports the roof of a building or industrial facility.

Rock Cornish fryer, roaster, or hen is the progeny of a Cross between a purebred Cornish and a purebred Rock chicken, without regard to the weight of the carcass involved; however, the term fryer, roaster,or a hen shall apply only if the carcasses are from birds with ages and characteristics of a broiler or fryer or roaster or roasting chicken.

Rabbit refers to a domesticated lagamorph of the genus Orctolagus Cuniculus. Some of the meat sold fresh or frozen in the grocery store is a domesticated animal from the rabbit family. The meat is finely textured and almost all white. Choosing a small, younger rabbit, in the range of 2 to 3 pounds, will provide a more tender and mild flavored meat.

Rayon fibre is characterized as a man-made fibre made from regenerated cellulose. It is made by forcing cellulose through fine holes then solidifying it into thread in either a chemical Bath or warm air. This thread is primarily used in sport shirts and occasionally in suits to provide superior drape and to fight wrinkles.

Roaster or Roasting Chicken refers to a bird which is young chicken, usually three to five months of age, of either sex, that is tender-meated with soft, pliable, smooth-textured skin and breastbone cartilage that may be somewhat less flexible than that of a broiler or fryer.

A reactor is a device used in industrial processes to create or control chemical reactions..

Deutsch: Bahn / Português: Transporte ferroviário / Italiano: Trasporto ferroviario
Rail transport is a means of conveyance of passengers and goods, by way of wheeled vehicles running on rails. It is also commonly referred to as train transport or railroad. In contrast to road transport, where vehicles merely run on a prepared surface, rail vehicles are also directionally guided by the tracks on which they run. Track usually consists of steel rails installed on sleepers/ties and ballast, on which the rolling stock, usually fitted with metal wheels, moves. However, other variations are also possible, such as slab track where the rails are fastened to a concrete foundation resting on a prepared subsurface.

Rolling tote bag refers to a luggage large enough to carry personal items, which may include clothing, toiletries, Reading materials, etc. Also referred to as an overnight bag, a tote is usually carry-on approved.