二に重じゅう結けつ合ごうにじゅうけつごうMeanings1noundouble bondchemistryChemistry term for a covalent bond where two pairs of electrons are shared between atoms.エチレンには炭たん素そ間かんに二に重じゅう結けつ合ごうがある。Ethylene has a double bond between the carbon atoms.二に重じゅう結けつ合ごうは
