oindexorthoformate./awr-thuh-fawr-meyt/US // ˌɔr θəˈfɔr meɪt //正畸,原甲酸酯,原甲酸盐,原甲酸乙酯Definitionsn.noun · 名词1. Chemistry.›an ester of orthoformic acid.Level 4More words in o →