Sinônimos & Informações Sobre | Palavra Inglês COPPER

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Exemplos de uso de COPPER em uma frase

• Francisco d'Anconia is one of the central characters in Atlas Shrugged, an owner by inheritance of the world's largest copper mining operation.
• 708 – Copper coins are minted in Japan for the first time (Traditional Japanese date: August 10, 708).
• Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, but copper typically has the larger proportion, generally 66% copper and 34% zinc.
• These additions produce a range of alloys that may be harder than copper alone, or have other useful properties, such as strength, ductility, or machinability.
• The country's economic development was successively marked by the export of first agricultural produce, then saltpeter and later copper.
• Copper subscriber systems have been improved with Asymmetric Digital Subscriber Line (ADSL) equipment to accommodate Internet and other digital signals.
• The Chalcolithic covers both the early cold working (hammering) of near pure copper ores, as exhibited by the likes of North American Great Lakes Old Copper complex, from around 6,500 BC, through the later copper smelting cultures.
• Humans started to master that process in Eurasia during the 2nd millennium BC and the use of iron tools and weapons began to displace copper alloys – in some regions, only around 1200 BC.
• A copper intrauterine device (IUD), also known as an intrauterine coil or copper coil or non-hormonal IUD, is a type of intrauterine device which contains copper.
• Originally made of wood, bone, and stone (such as flint and obsidian), over the centuries, in step with improvements in both metallurgy and manufacturing, knife blades have been made from copper, bronze, iron, steel, ceramic, and titanium.
• It is a member of the izoklakeite – berryite series with silver and iron substituting in the copper site and a varying ratio of bismuth, antimony, and lead.
• With the current rise in metal prices, gold and copper mining companies are opening mines in the interior.
• Mongolia also has extensive mineral deposits: copper, coal, molybdenum, tin, tungsten, and gold account for a large part of industrial production.
• Minerals of interest are generally oxides, sulfides, silicates, or native metals such as copper or gold.
• It has been the most common technique for artistic painting on canvas, wood panel or copper for several centuries, spreading from Europe to the rest of the world.
• He is Europe's oldest known natural human mummy, offering an unprecedented view of Chalcolithic (Copper Age) Europeans.
• It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa, which accounts for ~80% of the world production.
• It resembles manganese and technetium chemically and is mainly obtained as a by-product of the extraction and refinement of molybdenum and copper ores.
• Instead radio programs were transmitted by copper wire, using a hub and spoke system, to loudspeakers in approved listening stations, such as the "Red" corner of a factory.
• Surface rust is commonly flaky and friable, and provides no passivational protection to the underlying iron, unlike the formation of patina on copper surfaces.
• It is a form of extractive metallurgy that is used to obtain many metals such as iron, copper, silver, tin, lead and zinc.
• Though some simple metalworking of malleable metals, particularly the use of gold and copper for purposes of ornamentation, was known in the Stone Age, it is the melting and smelting of copper that marks the end of the Stone Age.
• The head may be simply the sharpened end of the shaft itself, as is the case with fire hardened spears, or it may be made of a more durable material fastened to the shaft, such as bone, flint, obsidian, copper, bronze, iron, or steel.
• The area includes Cook Inlet, the Matanuska-Susitna Valley, the Kenai Peninsula, Prince William Sound, and the Copper River Valley.
• However, they are not a commercially significant source of tellurium itself, which is normally extracted as a by-product of copper and lead production.

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