请输入您要查询的英文单词:
单词
carbon 12
释义
WordReference Random House Unabridged Dictionary of American English © 2024
carbon 12,
Chemistry
the isotopic carbon atom that comprises 99 percent of naturally occurring carbon, and that since 1961 has been used as the standard for atomic weight by representing a unit of 12.00000.
Also,
car•bon-12
(kär
′
bən twelv
′
).
USA pronunciation
1940–45
随便看
photomorphogenesis
photomorphogenic
photomosaic
photo-mount
photomultiplier
photomural
photomuralist
photon
photonegative
photoneutron
photonic
photonics
photonovel
photonuclear
photo-offset
photo opportunity
photooxidation
photopathy
photoperiod
photoperiodically
photoperiodism
photophilic
photophobia
photophobic
photophore
英语词典包含188688条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/11/13 16:07:20