久青草国产手机视频免费观看_毛片网站是多少_亚洲视频中文_一区二区高清在线

首頁英語詞典nn英英釋意

n

英 [en] 美[?n]
  • n. 英語字母的第十四個字母

英英釋意


1. (of a solution) concentration expressed in gram equivalents of solute per liter
2. a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
3. the cardinal compass point that is at 0 or 360 degrees
4. a unit of force equal to the force that imparts an acceleration of 1 m/sec/sec to a mass of 1 kilogram; equal to 100,000 dynes
5. the 14th letter of the Roman alphabet