【化】 ethylene perchloride; ethylene tetrachloride
four
【医】 quadri-; Quat; quattuor; tetra-
chlorine
【医】 C1.; chlor-; chlorine; chlorinum; chloro-; chlorum; niton
era; generation; take the place of
【电】 generation
ethylene
【化】 ethene; ethylene; olifiant gas
【医】 aethylenum; ethene; ethylene