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| élément chimique indispensable à la santé | |||
| micro-élément m; microélément m; microsubstance nourricière; oligo-élément m | |||
| élément en trace; élément traceur | |||
| oligoélément m | |||
| élément trace; radio-isotope indicateur; radioélément indicateur | |||
| élément-trace m | |||
| élément oligo-dynamique | |||
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| éléments-traces m | |||
| oligoéléments m | |||
| élément trace | |||
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| élément trace | |||
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trace element : 9 phrases in 6 subjects |
| Agriculture | 1 |
| Coal | 1 |
| Earth sciences | 2 |
| Environment | 3 |
| Life sciences | 1 |
| Medical | 1 |