网站首页  英语学习  诗文鉴赏

请输入您要查询的英文单词：

　

单词 half-life
分类 翻译、意思、用法、释义、英译汉、汉译英、英汉双解词典
释义  Related topics: Physicsˈhalf-life noun [countable]  HPthe length of time it takes a radioactive substance to lose half of its radioactivity 〔放射性物质的〕半衰期Examples from the Corpushalf-life• The time it takes for a dose of a drug to wear off is measured by a value called a half-life.• But it has a half-life of just 140 days so there can be little delay manufacture and its incorporation into a bomb.• With a half-life of 12 years, tritium could build up in the Tamar estuary and eventually enter the human food chain.• The more complete descriptive term is drug elimination half-life.• The time taken for half of the atoms of a radioactive isotope to decay is called its half-life.• No one has a long half-life as the star of the program.• These effects are less marked with fentanyl because of its shorter serum half-life.• The daily intake should be divided into at least three doses because of the short half-life.ˈhalf-life nounChineseSyllable   Corpus time the to length of substance it lose takes a radioactive
随便看

　

英语词典包含340727条英汉在线翻译词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

　

Copyright © 2002-2024 dylcd.com All Rights Reserved
更新时间：2026/8/19 17:24:30