isotope造句
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.
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.
...tritium, a radioactive
isotope of hydrogen.
氢的放射性同位素氚
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.
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.
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.
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.
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.
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.