天然 放射 性 同位 体 tennenhōshaseidō itai
1. natural radioisotope
Word Pronunciation
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18 Variants Available
1. Not a naturally occurring radioisotope.
1. Natural radioactive isotope with
1. Naturally radioactive isotope; Radioactive isotope
1. Not a naturally occurring radioisotope.; It is not a natural radioisotope.
1. It is not a natural radioactive isotope.
1. Was a natural radioactive isotope.
1. Is not a naturally occurring radioactive isotope.
1. Was not a naturally occurring radioisotope.
1. Probably a natural radioactive isotope.
1. Was not a naturally occurring radioactive isotope.
1. Was not a naturally occurring radioisotope.
1. Probably a naturally occurring radioactive isotope.
1. Was not a natural radioactive isotope.
1. If/when natural radioactive isotopes
1. If it is a natural radioactive isotope; When it is a natural radioactive isotope
1. If/when natural radioactive isotopes