例句與造句

1. 60 Fe is an extinct radionuclide of long half-life ( 2.6 million years ).
2. An example of an extinct radionuclide is xenon-129, a stable isotope of xenon which appears as a relative excess against other xenon isotopes.
3. The trapped iodine-129 now appears as a relative excess of xenon-129 . Iodine-129 was the first extinct radionuclide to be inferred, in 1960.
4. Stable isotope nickel-60 is the daughter product of the extinct radionuclide [ [ iron-60 | ] ], which decays with a half-life of 2.6 million years.
5. The outflowing 44 Ti nuclei were thus still " alive " ( radioactive ) when the SUNOCON condensed near one year within the expanding supernova interior, but would have become an extinct radionuclide ( specifically 44 Ca ) after the time required for mixing with the interstellar gas.
6. It's difficult to find extinct radionuclide in a sentence. 用extinct radionuclide造句挺難的
7. The calcium in some presolar grains is composed primarily of Ca-44, which is presumably the remains of the extinct radionuclide Ti-44, a titanium isotope which is formed in abundance in Type II supernovae such as SN 1987A after rapid capture of eight alpha particles by Si-28, after the process of silicon burning normally begins, and prior to the supernova explosion.