Glossary R
Deutsch: Radar / Español: Radar / Português: Radar / Français: Radar / Italiano: Radar
Radar of the type used for detection of aircraft. It rotates steadily sweeping the airspace with a narrow beam.
Radar is an object-detection system that uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.
Deutsch: Feuerfester Werkstoff / Español: Material refractario / Português: Materiais refratários / Français: Matêriau rêfractaire / Italiano: Materiale refrattario
A refractory material is one that retains its strength at high temperatures. ASTM C71 defines refractories as "non-metallic materials having those chemical and physical properties that make them applicable for structures, or as components of systems, that are exposed to environments above 1,000 °F (811 K; 538 °C)".
Refractory materials are used in linings for furnaces, kilns, incinerators and reactors. They are also used to make crucibles.
Deutsch: Viehzucht / Español: Rancho / Português: Rancho / Français: Ranch / Italiano: Ranch
A ranch is an area of landscape, including various structures, given primarily to the practice of ranching, the practice of raising grazing livestock such as cattle or sheep for meat or wool. The word most often applies to livestock-raising operations in Mexico, the western United States and Canada, though there are ranches in other areas. People who own or operate a ranch are called ranchers, or stockgrowers. Ranching is also a method used to raise less common livestock such as elk, American bison or even ostrich, emu, and alpacas.
Deutsch: Reibahle / Español: Escariado / Français: Alêsoir / Italiano: Alesatore
A reamer is a type of rotary cutting tool used in metalworking. Precision reamers are designed to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides. There are also non-precision reamers which are used for more basic enlargement of holes or for removing burrs. The process of enlarging the hole is called reaming.
Deutsch: Ressource / Español: Recurso / Português: Recurso / Français: Ressource / Italiano: Risorsa /
Español: Recurso
A resource is a source or supply from which benefit is produced. Typically resources are materials, money, services, staff, or other assets that are transformed to produce benefit and in the process may be consumed or made unavailable. Benefits of resource utilization may include increased wealth, meeting needs or wants, proper functioning of a system, or enhanced well being.
Deutsch: Widerstand / Português: Resistance / Français: Rêsistance
In the industrial and industry context, "resistance" refers to the opposition or hindrance to the flow of electrical current, heat, or fluid through a material or substance. Resistance is a fundamental property of many materials and can have important implications for the performance, safety, and efficiency of industrial and manufacturing operations.
Deutsch: Seil / Español: Cuerda / Português: Corda / Français: Corde / Italiano: Corda
A rope is a linear collection of plies, yarns or strands which are twisted or braided together in order to combine them into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting, but are far too flexible to provide compressive strength. As a result, they cannot be used for pushing or similar compressive applications. Rope is thicker and stronger than similarly constructed cord, line, string, and twine.