| 释义 |
e·ther AHD[ēʹthər] D.J.[ˈiːθə]K.K.[ˈiθɚ]n.（名词）- Any of a class of organic compounds in which two hydrocarbon groups are linked by an oxygen atom.醚，乙醚：一类有机化合物，它们以一个氧原子与两个包含在烃基中的碳原子相连接为特征
- A volatile, highly flammable liquid, C2H 5OC 2H 5, derived from the distillation of ethyl alcohol with sulfuric acid and widely used as a reagent, a solvent, and an anesthetic. Also called diethyl ether ,ethyl ether 乙烯：一种易挥发的，极易燃烧的液体C2H 5OC 2H 5，由乙醇与硫酸一起蒸馏获得，广泛用作试剂、溶剂和麻醉剂 也作 diethyl ether,ethyl ether
- The regions of space beyond the earth's atmosphere; the heavens.太空：超出地球大气层的空间区域；太空
- The element believed in ancient and medieval civilizations to fill all space above the sphere of the moon and to compose the stars and planets.天体要素：在古代和中古时代被认为是充满于月球空间并且是构成恒星和行星的元素
- Physics An all-pervading, infinitely elastic, massless medium formerly postulated as the medium of propagation of electromagnetic waves.【物理学】 以太，能媒：一种在以前被假定为电磁波的传播媒质并具有绝对连续性、高度弹性的极其稀薄的媒体
- Middle English [upper air] 中古英语 [上层空气]
- from Latin aethēr 源自 拉丁语 aethēr
- from Greek aithēr 源自 希腊语 aithēr
etherʹic AHD[ĭ-thĕrʹĭk, ĭ-thîrʹ-] （形容词） |