| 单词 | carat |
| 释义 | carat (once / 10190 pages) n Precious jewels are measured in carats instead of ounces or grams. If your sister gets a three-carat diamond ring, she's getting a ring that weighs 600mg, which is big enough to be called "a rock." A variant of carat is karat. The former is usually used with diamonds and is a measure of weight, whereas the latter is usually used for gold and is a measure of purity. One karat is 1/24th of the mass, so 24-karat gold is pure. An 18-karat gold ring is 18/24 (or 3/4) gold and 6/24 (or 1/4) other metals. WORD FAMILYcarat: carats USAGE EXAMPLESThe top lot at its semi-annual Geneva sale, the stone weighs 9.14 carats and is graded fancy vivid pink, the highest possible color grading. Reuters(Nov 15, 2016) However, the navy exercises CARAT, or cooperation afloat readiness and training, and Phiblex, a marine amphibious landing exercise, would be ditched, he said. Reuters(Nov 08, 2016) So far De Beers’s Namibian operations have mined some 16 million carats at sea and about 62 million carats on land. Wall Street Journal(Oct 20, 2016) 1n the unit of measurement for the proportion of gold in an alloy; 18-karat gold is 75% gold; 24-karat gold is pure gold Syn|Hyper karat, kt unit, unit of measurement any division of quantity accepted as a standard of measurement or exchange 2n a unit of weight for precious stones = 200 mg Hyper metric weight unit, weight unit a decimal unit of weight based on the gram |
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