unstable isotope

常见例句

双语例句

• Each element has at least one isotope with unstable nuclei that can undergo radioactive decay .
  每个元素至少有一个同位素不稳定原子核可以进行放射性衰变。

权威例句

• Being a company of utter geeks, Google called this beta test laptop the Cr-48 after the chemical name of an unstable isotope of the chrome element.
  FORBES: Names You Need to Know: Cr-48
• Fission comes from the relatively unstable isotope u-235.
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