a mixture of isotopes of lead, together with some bismuth and polonium, which constitutes the longer-lived product of the decay of radon; (also)…
| 单词 | θ79560 |
| 释义 | the world > matter > physics > atomic nucleus > radioactive isotope > specific isotopes > [noun] > radium > radon > mixture (1) radiolead1903 a mixture of isotopes of lead, together with some bismuth and polonium, which constitutes the longer-lived product of the decay of radon; (also)… |
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