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: 国产精品亚洲片在线牛牛影视 | 国产高清不卡一区二区 | 免费人成毛片动漫在线播放 | 热99re久久精品香蕉 | 国外精品视频在线观看免费 | 欧美自拍视频 | 欧美激情精品久久久久久久久久 | 成年黄网站色视频免费观看 | 欧美一区二区三区性 | 国产精品久久久久网站 | 久久国产精品一区 | 免费看国产精品久久久久 | 日本69色视频在线观看 | 日本福利视频 | 久久精品国产99久久久 | 99在线免费观看视频 | 青草视频网站在线观看 | 欧美 中文字幕 | 久久综合九色综合欧美狠狠 | 国产精品亚洲专区在线播放 | 久久成人国产精品免费 | 天天爽天天狼久久久综合 | 精品综合久久久久久97超人该 | 成人黄视频在线观看 | 精品在线免费观看视频 | 日本天码aⅴ片在线电影网站 | 免费国产不卡午夜福在线观看 | 精品国产中文一级毛片在线看 | 久久精品只有这里有 | 视频在线你懂的 | 国产色图区 | 久久九| 日韩中文字幕在线不卡 | 国产精品免费一区二区区 | 日韩a在线观看 | 99在线观看精品 | 青草视频在线观看免费 | 青草国产精品久久久久久 | 欧美二区三区 | 久久这里只有精品2 | 少女中文字幕在线视频 |