isotope的例句（isotope在句子中的用法）

• The Minnesota work on kaersutite also showed the presence of the isotope neon - 21. 明尼苏达大学关于钛角闪石的研究表明,其中也存在同位素氖 - 21.
• The isotope ratio is directly used for comparing oils or gases. 同位素比率直接用于比较各种石油或天然气.
• Lasers promise to change this by making isotope separation easier, and cheaper. 激光可以改变这种局面,从而使同位素分离变得比较容易 、 比较廉价一些.
• Today, most cyclotrons are used either for instructional purpose or for isotope production. 今天大多数回旋加速器是用在教学上,或者用于同位素生产.
• This indium isotope was created at the same time as the earth. 这种铟同位素与地球产生在同一时代.
• The method of determining Ni, Cu and Pbi n urine with isotope dilution mass spectrometry ( IDMS ) is described. 介绍了采用同位素稀释质谱法 ( IDMS ) 测定冻干人尿样品中镍 、 铜、铅的含量.
• Even Francium's most stable isotope, Francium - 223 only has a half - life of 22 minutes. 钫的最稳定的同位素, 钫 -223 也只有22分钟的半衰期.
• A synthetic element produced in trace quantities by helium isotope bombardment of curium. 锎一种合成元素,由氦同位素轰击锔可得到微量的这种元素.
• Caesium - 137 is a radioactive isotope, formed mainly through nuclear fission. 铯-137是一种放射性同位素, 主要由核分裂产生.
• ...tritium, a radioactive isotope of hydrogen. 氢的放射性同位素氚