【化】 tetraethyl-succinic acid
four
【医】 quadri-; Quat; quattuor; tetra-
second
【建】 acetonitrile; ethane nitrile
era; generation; take the place of
【电】 generation
【化】 butanedioic acid; ethylene dicarboxylic acid; succinic acid
【医】 chelidoninic acid; succinic acid