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| radioactive label; tracer | |||
| radioactive tracer; radioactive tracer A radioactive isotope which, when injected into a biological or physical system, can be traced by radiation detection devices, permitting determination of the distribution or location of the substance to which it is attached | |||
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| radioactive tracers | |||
| radioaktivt sporstof: 4 phrases in 2 subjects |
| Chemistry | 1 |
| Environment | 3 |