| 词汇 | cobalt |
| 释义 | cobalt noun[ U ] uk /ˈkəʊ.bɒlt/ us /ˈkoʊ.bɑːlt/(symbolCo) cobaltnoun[U] (METAL)a chemical element that is a hard silver-white metal, used in metal mixtures and for making materials blue钴 Chemical elements actinium alkali metal americium astatine berkelium brimstone bromine calcium fluorine germanium iodine lithium manganese nickel plutonium quicksilver selenium silicon sodium transition metal cobaltnoun[U] (COLOUR)(alsocobalt blue) a deep blue or greenish-blue colour钴类颜料 claudiodivizia/iStock/Getty Images Plus/GettyImages Less common colours apple green argent ashy avocado baby blue carmine cerise dun emerald peacock blue puce racing green ruddily rust salmon pink sanguine sapphire shocking pink sky blue verdure cobalt adjective uk /ˈkəʊ.bɒlt/ us /ˈkoʊ.bɑːlt/(alsocobalt blue) having a deep blue or greenish-blue colour钴蓝的，深蓝色的;蓝绿色的 Less common colours apple green argent ashy avocado baby blue carmine cerise dun emerald peacock blue puce racing green ruddily rust salmon pink sanguine sapphire shocking pink sky blue verdure cobalt | American Dictionarycobalt noun[ U ] us/ˈkoʊˌbɔlt/ chemistry a hard, gray chemical element that is a metal and is used in making paint and alloys (= mixtures of metals) Examples of cobaltcobalt Because of cobalt's toxicity, no more than five injections were made in any given site. Inorganic chemistry in particular provided the bulk of new pigments based on chromium, cadmium, cobalt, zinc, copper and arsenic. Comparisons are usually made visually with platinum-cobalt standards prepared from mixtures of chloroplatinic acid and cobalt chloride. In its absence, isocentric cobalt can deliver the irradiation, but with higher risks of normal tissue and organ injury. A greater bioefficiency of cobalt was established in infected chickens. The heavy metals in the ash included arsenic, cadmium, chromium, manganese, nickel, cobalt, copper, zinc, and lead. Many valuable metals that we use widely, including iron, copper, zinc, cobalt and uranium, are found in the form of metal sulphides. The increase was sustained for the 20-min duration of exposure to light and was not seen in the presence of cobalt ions. Results were obtained for arsenic, cadmium, chromium, cobalt, copper, lead, nickel, and zinc. A thin vacuum gap separates the cobalt and copper foils from each other and thus electrons are held back by self-generated fields. Of the 25 cells that responded to choline under cobalt blockade, strychnine attenuated the choline response of 11 of those cells. In addition to the binary borate glasses, six samples containing cobalt oxide substituted for di-lithium oxide were also prepared. A samarium cobalt magnet with removable collecting wire is dipped into the labelled ferrofluid-cell mix. Sub-millimolar cobalt selectively inhibits the receptive field surround of retinal neurons. A simple technique for timing irrigation in coee using cobalt chloride paper discs. See all examples of cobalt These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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