弘扬国学 · 传承文化

molybdenum

英 [mə'lɪbdənəm] 美 [mə'lɪbdənəm]

解释

n. [化学] 钼（金属元素，符号Mo，原子序号42）

※ 提供单词"molybdenum"的中文意思、发音示范及音标对照，中英文词源、例句和用法等。

中文词源

molybdenum 钼

金属元素，用于指铅状矿物质。来自希腊语molybdos,铅，黑色石墨，-um,化学元素后缀。

英文词源

molybdenum (n.): metallic element, 1816, from molybdena, used generally for lead-like minerals, from Greek molybdos "lead," also "black graphite," related to Latin plumbum "lead" (see plumb (n.)), and like it probably borrowed from a lost Mediterranean language, perhaps Iberian. The element so called because of its resemblance to lead ore.

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例句和用法

1. Molybdenum deficiency is found when legumes are grown on acid soils.: 在酸性土壤上种植豆科作物时常发现缺钼.

2. The following elements are nickel, chromium, molybdenum.: 这些元素是:镍、铬、钼.

3. Molybdenum is required for this reduction.: 这种转化需要钼.

4. When molybdenum is deficient, nitrate may accumulate to a toxic level in the plant.: 当钼不足时, 硝酸盐会积累在植物中达到毒害的程度.

5. These reactions involve electrondonation from the inconing ligand to the empty d - orbitals of the molybdenum.: 这些反映包括进入的配位体对铝的d空轨的电子给予作用.