 |
| |||
| indicating agents; indicator; marker margarine | |||
| marker; tracer | |||
| tracer A minute quantity of radioactive isotope used in medicine or biology to study the chemical changes within living tissues | |||
| røbestof: 3 phrases in 1 subject |
| Earth sciences | 3 |
|
| |||
| indicating agents; indicator; marker margarine | |||
| marker; tracer | |||
| tracer A minute quantity of radioactive isotope used in medicine or biology to study the chemical changes within living tissues | |||
| røbestof: 3 phrases in 1 subject |
| Earth sciences | 3 |