日韩久久网,国产精品免费综合一区视频,国产精品久久久久久亚洲小说,国产精品自拍合集,久久久精品免费视频,www.草草影院

uranium

英 [j?'re?n??m] 美[j?'ren??m]
  • n. [化學] 鈾

CET6+TEM8CET6中低頻詞擴展詞匯

中文詞源


uranium 鈾

來自1789年,其發現者德國化學家和礦物學家Martin Heinrich Klaproth以當時新發現的行星Uranus為這種金屬元素命名。比較cerium, 來自谷物女神Ceres.

英文詞源


uranium
uranium: [18] Ouranós was an ancient sky god in Greek mythology, consort of Gaea and father of Cronos and the Titans (his name was a personification of Greek ouranós ‘heaven’). The Romans called him ūranus, and the name soon came to be applied to the seventh planet from the sun after it was discovered in 1781. (Its discoverer, the German-born British astronomer Sir William Herschel, originally named it Georgium sidus ‘Georgian planet’, as an obsequious compliment to King George III, and others suggested that it should be called Herschel after the man who found it, but in the end the customary practice of naming after a classical deity prevailed.) The term uranium was derived from the planet’s name in 1789 by the German chemist Martin Klaproth, and is first recorded in English in 1797.
uranium (n.)
rare metallic element, 1797, named 1789 in Modern Latin by its discoverer, German chemist and mineralogist Martin Heinrich Klaproth (1743-1817), for the recently found planet Uranus (q.v.) + element ending -ium.

雙語例句


1. It was actually used for enriching uranium to weapons-grade levels.
實際上,它是用來將鈾濃縮以制造武器。

來自柯林斯例句

2. Enriched uranium is a key component of a nuclear weapon.
濃縮鈾是核武器的關鍵組成部分。

來自柯林斯例句

3. Uranium is soluble in sea water.
鈾可溶解于海水。

來自柯林斯例句

4. They went over nationwide in search of uranium mines.
他們為了探尋鈾礦走遍了全國.

來自《簡明英漢詞典》

5. Only 7 uranium atoms of every 1,000 are U - 235.
在每1000個鈾原子當中,只有七個是鈾235.

來自英漢非文學 - 科技

主站蜘蛛池模板: 婷婷网五月天天综合天天爱 | 天天狠狠 | 99视频热 | 奇米综合网 | 欧美精品国产综合久久 | 高清欧美一级在线观看 | 狠狠五月天 | 亚洲青青青网伊人精品 | 国产精品免费一区二区三区 | 久久99久久精品国产只有 | 国内精品在线视频 | 精品女同一区二区三区免费站 | 日韩欧美精品在线观看 | 欧美成人性色 | 国产美女在线观看 | 国内国外精品一区二区 | 欧美aav| 精品一区二区三区三区 | 一级毛片免费全部播放完整 | 天天干天天干天天干天天干 | 久久亚洲精品成人 | 欧美色第一页 | 婷婷激情在线 | 99精品国产综合久久久久 | 国产专区中文字幕 | 欧美日韩国产免费一区二区三区 | 色噜噜狠狠在爱丁香 | 99re久久精品国产首页2020 | 2021天堂在线亚洲精品专区 | 黄色小视频免费在线观看 | 久久国产精品免费一区二区三区 | 精品无人区乱码1区2区3区免费 | 婷婷亚洲五月 | 国内a级毛片 | 99国产精品视频久久久久 | 99热欧美 | 99热在| 久久亚洲精品tv | 国产精品国产亚洲精品看不卡 | 成人夜色视频网站在线观看 | 色五丁香 |