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单词 radioactive decay
释义

radioactive decay

英汉-汉英词典
[物]放射性衰变
词组 | 习惯用语
您要查找的是不是:
    radiative decay 辐射衰变
    radioactive decay series 放射性衰变系;放射衰变系;翻译
    radioactive decay constant 放射性衰变常数;翻译
    radioactive decay law 放射性衰变定律;放射性衰变律;翻译
    radioactive decay product 放射性衰变产物;子体;放射性蜕变产物
    radioactive decay chain 放射性衰变链;翻译
radioactive decay [核] 放射性衰变
natural radioactive decay 放射性自然衰变
law of radioactive decay 放射性蜕变定律
原声例句
超女 第02季 S02

Kara, we calculated the rate of radioactive decay.

卡拉 我们计算过放射衰变率

双语版 TED-Ed 演讲精选

They're produced in your body from the radioactive decay of potassium.

你的体内的钾的放射性衰变会产生中微子。

少年谢尔顿-第二季

Glad to see we got so many people interested in radioactive decay.

很高兴看到有这么多人对放射性衰变感兴趣。

双语版 TED-Ed 演讲精选

They're produced by nuclear reactions inside the sun and by radioactive decay inside the Earth.

太阳中的核反应和地球内部的放射性衰变都能产生中微子。

Crash Course 天文篇

Their age can be found by looking at ratios of elements in them formed from radioactive decay.

它们的年龄可以通过观察由放射性衰变形成的元素的比例而发现。

VOA慢速英语_科技

This is possible because the two nuclides break down at different rates, through the process of radioactive decay.

这是可能的,因为这两种核素在放射性衰变过程中以不同的速率分解。

TED-Ed(视频版)

Some of this heat comes from the radioactive decay of metals.

其中一些热量来自金属的放射性衰变

Crash Course 综合篇

The second type of radioactive decay is beta decay, which simply emits electrons.

第二种类型的放射性衰变是 β 衰变, 它只是发射电子。

双语版 TED-Ed 演讲精选

Finally, 0.93% of our air is argon, a molecule formed from the radioactive decay of potassium in Earth's atmosphere, crust, and core.

最后,我们的空气有 0.93% 是氩。氩是地球大气、地壳,及地核中的钾经过放射性衰变产生的分子。

Crash Course 综合篇

When a nucleus decomposes in this way to form a different nucleus that's radioactive decay.

当一个原子核以这种方式分解形成另一个不同的原子核时, 它就是放射性衰变

中文百科

放射性

放射性的标志。Unicode所收录的编码为U+2622(☢)
1907年居里夫妇及他们在巴黎的实验室
放射性和侦测到电离辐射之间的关系
 α粒子的穿透力最小,一张纸可挡住。β粒子可由铝屏蔽。伽玛射线穿透力强,必须使用实质性的障碍,例如一层非常厚的铅,但仍然未能完全阻挡[8]。

放射性是指元素从不稳定的原子核自发地放出射线,(如α射线、β射线、γ射线等)而衰变形成稳定的元素而停止放射(衰变产物),这种现象称为放射性。衰变时放出的能量称为衰变能量。原子序数在83(铋)或以上的元素都具有放射性,但某些原子序数小于83的元素(如锝)也具有放射性。而有趣的是,从原子序93开始一直到锫元素有以下特性:原子序是偶数的,半衰期都特别长。由于偶数元素的原子核含有适当数量的质子和中子,因此形成有利的配置结构。〈即魔数〉

对单一原子来说,放射性衰变依照量子力学是随机过程,无法预测特定一个原子是否会衰变。不过原子衰变的机率不会随着原子存在的时间长短而改变。对大量的原子而言,可以用量测衰变常数计算衰变速率及半衰期。其半衰期没有已知的时间上下限,范围可以到55个数量级。

英语百科

Radioactive decay 放射性

Alpha decay is one type of radioactive decay, in which an atomic nucleus emits an alpha particle, and thereby transforms (or
Pierre and Marie Curie in their Paris laboratory, before 1907
Taking an X-ray image with early Crookes tube apparatus in 1896. The Crookes tube is visible in the centre. The standing man is viewing his hand with a fluoroscope screen; this was a common way of setting up the tube. No precautions against radiation exposure are being taken; its hazards were not known at the time.

Radioactive decay, also known as nuclear decay or radioactivity, is the process by which the nucleus of an unstable atom loses energy by emitting radiation, including alpha particles, beta particles, gamma rays and conversion electrons. A material that spontaneously emits such radiation is considered radioactive.

近义、反义、联想词
近义词
n.
nuclear reaction

英英词典
radioactive decay n.
  1. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

  2. synonymous: decay, disintegration
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更新时间:2025/6/20 14:15:33