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geographical    音标拼音: [dʒ,iəgr'æfɪkəl]
a. 地理学的,地理的

地理学的,地理的

geographical
adj 1: of or relating to the science of geography [synonym:
{geographic}, {geographical}]
2: determined by geography; "the north and south geographic
poles" [synonym: {geographic}, {geographical}] [ant: {magnetic}]

Geographic \Ge`o*graph"ic\, Geographical \Ge`o*graph"ic*al\, a.
[L. geographicus, Gr. ?: cf. F. g['e]ographique.]
Of or pertaining to geography.
[1913 Webster]

{Geographical distribution}. See under {Distribution}.

{Geographic latitude} (of a place), the angle included
between a line perpendicular or normal to the level
surface of water at rest at the place, and the plane of
the equator; differing slightly from the geocentric
latitude by reason of the difference between the earth's
figure and a true sphere.

{Geographical mile}. See under {Mile}.

{Geographical variation}, any variation of a species which is
dependent on climate or other geographical conditions.
[1913 Webster]


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  • What is Purple Gold? Is This Rare Gold Alloy Real and Valuable?
    Purple gold is a real gold alloy made of yellow gold and aluminum It’s a colored gold alloy made of 79% gold and 21% aluminum, forming the intermetallic compound AuAl2 and giving it a distinct magenta hue
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  • What Is Purple Gold Made Of? - preciousmetalinfo. com
    Purple gold is considered a precious metal, according to World Gold Council It is made of gold and aluminum, with the former’s ratio being 79% and the latter’s 21% This is why it is classified between 18K and 19K Since purple gold is a rare alloy, it is mostly used to create bespoke jewelry
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    Purple gold is a precious metal noted for its vibrant purple color More precisely, purple gold is an alloy of pure gold mixed with aluminum and (sometimes) traces of other metals
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    Discover purple gold: a rare 18-20K precious metal combining gold and aluminum Learn about its unique properties, value, and jewelry care
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    Purple gold, sometimes called amethyst gold or violet gold, is one of the most challenging gold alloys to create and work with This rarity makes it one of the most expensive colored golds on the market
  • Purple Gold - skyjems. ca
    Purple gold is a gold-aluminium intermetallic compound, formally AuAl 2, that displays a deep purple to violet body colour fundamentally different from any of the conventional alloyed gold colours
  • What is Colored Gold? How Many Types of Colored Golds are There?
    Purple gold alloy is made of 79% gold and 21% aluminum, forming the intermetallic compound AuAl2 with a distinct purple hue Purple gold is a rare and challenging gold alloy to make and this makes it one of the most expensive types of colored gold you can own
  • What is purple gold? | WATCH EDUCATION - Time+Tide Watches
    Purple gold was only invented in the year 2000, and so it’s a very young material Its only “natural” occurrence is actually a dreaded accident known as the purple plague, when gold and aluminium fuse in integrated circuits and cause poor conductivity
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    Purple gold is a unique 19-karat gold alloy created by combining 79% pure gold with approximately 21% aluminum Unlike traditional gold alloys that are malleable, purple gold is an intermetallic compound, making it remarkably vibrant but also very brittle





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