de ethen (n)
― IsA ⟶
Weight: 1.0
de kohlenwasserstoff Source: German Wiktionary
de ethen (n)
― IsA ⟶
Weight: 1.0
de olefin Source: German Wiktionary
de ethen (n)
― IsA ⟶
Weight: 1.0
de gas Source: German Wiktionary
de ethen (n)
― IsA ⟶
Weight: 1.0
de alken Source: German Wiktionary