isotope造句

• Later he named these separate forms isotopes .
  后来他称这些不同的形式为同位素。
• 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。
• Changes of nuclear mass and nuclear size cause isotope shifts .
  原子核质量和大小的不同引起同位素移动。
• The breakdown of radioactive isotopes goes on at constant rates .
  放射性同位素的衰变在恒定的速率下进行。
• Thompson was able to demonstrate the existence of two isotopes of neon .
  汤普森能证明氖有两种同位素存在。
• 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。
• More reactive are the heavier isotopes of hydrogen, deuterium and tritium .
  更为活跃的是氢的较重同位素，氘和氚。
• There are two main types of uses of radioactive isotopes in biochemistry .
  在生物化学中，放射性同位素主要有两方面的应用。
• Atoms of the same element that differ in their atomic weight are called isotopes .
  具有不同原子量的同一种元素被称为同位素。
• Ions of different isotopes converge at different points on the photographic plate .
  在照相底板上不同的同位素的离子会聚于不同点。
• The large number of radioactive isotopes among the heavy elements fit into three series .
  重元素中的大量放射性同位素分属于三个系列。
• A detailed search for the isotopes of all the elements required a more precise technique .
  仔细寻找所有元素的同位素需要更精密的技术。
• The inferno spewed a deadly plume of radioactive isotopes into the atmosphere .
  这个象炼狱般的地方将一缕致死的放射性同位素喷入大气层。
• The decisive evidence for isotopes came from two quite different experiments in 1913 .
  对同位素的决定性证明来自1913年两个相当不同的实验。
• The radium isotopes are absorbed to an appreciable extent through the human and animal gut .
  镭的同位素通过人和动物的肠子时有很大部分被吸收。
• Extensive research has shown that fractional atomic masses always mean mixture of isotopes .
  进一步的研究揭示出：部分原子质量常是同位素的混合物。
• 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。
• Indirect ionization by neutrons can also result from fission of plutonium or uranium isotopes .
  通过使钚或铀同位素裂变，中于也能产生间接的电离作用。
• The interval is two mass units because these isotopes of the elements differ by two neutrons .
  因为这些元素的同位素相差两个中子，所以其间隔为两个质量单位。
• It is seen that the points representing stable isotopes define a rather narrow stability region .
  可以看到，表示稳定同位素的那些点，构成一个很窄的稳定性区域。