prean甲基眠尔通PREabbr.Petroleum Refining Engineer炼油工程师precoat filteration预涂层过滤preganglionic fibre节前纤维pre-heterodinesis前异化分裂Predication Formula谓词公式Premarket Admission市场准入模式predefined operator预定义运算符prefabricated field预制场pre-emption fight优先购买权Preah Vihear Temple柏威夏寺pre-mixed plaster预拌灰浆