abundance /SCIENCE/
[DE] Häufigkeit
[EN] abundance
[FR] abondance
abundance,natural abundance /SCIENCE/
[DE] natuerliche Isotopenhaeufigkeit
[EN] abundance; natural abundance
[FR] teneur isotopique naturelle
abundance,natural abundance /INDUSTRY-CHEM/
[DE] natürliche Isotopenhäufigkeit
[EN] abundance; natural abundance
[FR] teneur isotopique naturelle