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| tracer | |||
| trace isotope | |||
| tracer A minute quantity of radioactive isotope used in medicine or biology to study the chemical changes within living tissues (用于医学或生物学来研究生物组织化学变化的一分钟量放射性同位素。); tracer element | |||
| isotopic indicator; tracer isotope | |||
| isotopic tracer | |||
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| isotopic tracer | |||
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| radioindicator | |||
| 同位素指示 剂: 10 phrases in 5 subjects |
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