| |||
spoorelement n | |||
sporenelementen n | |||
oligo-element m | |||
micro-element m; sporenelement n | |||
| |||
oligo-elementen m; spoorelementen n | |||
sporenelementen n | |||
| |||
sporenelementen n |
trace element : 6 phrases in 4 subjects |
Agriculture | 2 |
Earth sciences | 2 |
Life sciences | 1 |
Medical | 1 |