uranium是什么意思？

uranium

英[juˈreɪniəm] 美[jʊˈreniəm]

• n. [化学]铀；

例句

• a tonne of highly enriched uranium 一吨高纯度的铀
• They went over nationwide in search of uranium mines. 他们为了探寻铀矿走遍了全国。
• A metal called uranium gave off a kind of radiation, which Marie Curie later called radioactivity. 一种叫铀的金属发出一种射线, 后来玛丽·居里把这种现象称为放射性.
• The earliest production reactors necessarily used normal uranium as fuel. 最早为生产用的反应堆,必须使用普通铀作为燃料.
• Additional mineral properties ( gold , silver and uranium ) were optioned in 2005 in Colorado. 2005年对科罗拉多洲的另外一些矿产地 ( 、 和铀 ) 具有期权.
• The concept holds that uranium is leached by groundwater from tuffeceous rocks. 该理论认为,来自凝灰岩的地下水淋蚀铀.
• When the uranium disintegrates, it changes into lead. 当铀蜕变时, 它变成了铅.
• The most sophisticated laboratory conditions mean the difficulty of determinations of uranium. 高度现代化的实验条件对测定铀有困难.
• Norton has reviewed conditions of deposition of the uranium host rocks. 诺顿论述了含铀主岩的沉积条件.
• Secondary uranium minerals are illustrated in a Bureau of Minerial Resources prospector's handbook. 次生铀矿物已列入矿物资源局的普查手册中.

柯林斯高阶英汉双解学习词典释义

• N-UNCOUNT
  铀
  Uranium is a naturally occurring radioactive metal that is used to produce nuclear energy and weapons.

英汉词典释义

• n.
  铀
  They went over nationwide in search of uranium mines. 他们为了探寻铀矿走遍了全国。

英英词典释义

• Noun
  1. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

行业词典

• 医学： 铀：一种硬而重的放射性金属元素，符号为U，原子序数92，原子量238.03，比重18.68。其化合物中有些可作药用。天然铀系3种放射性同位素所组成，其原子质量数分别为234，235和238。从铀238中分离得到的铀235可在慢中子作用下发生裂变，并释放中子；而被释放的中子可加入铀238使之形成镎，镎又可因发射β粒子而蜕变成钚。参见neptunium和plutonium；