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| isotop | |||
| isotopic element | |||
| isotope One or two or more atoms with the same atomic number that contain different numbers of neutrons (一个或两个或多个具有相同原子序数却包含不同中子数的原子。) | |||
| isotopic weight | |||
| isotope | |||
| tracer | |||
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| isotopic element | |||
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