tricarbonylWiktionary 原文英美构词拆解tritri-前缀carbonylcarbonyl词干tri-Three. · (chemistry) Used for the digit three to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.释义名词noun1(chemistry) Any metal compound in which the metal is attached to three carbonyl groups同族词派生词 1methylcyclopentadienyl manganese tricarbonyl