nonbookn.无真实价值的书(常指图片集、剪报集、演讲集等)nonadv.[拉]非；不是non-normal winding非正规绕组non - trading days非交易天数nonreciprocal coding非交互编码non-reentrant type非凹腔型nonnegative variable非负变量non-phosgene route非光气路线nonmotofacient phase[医] 非运动相non-thermal effect非热效应nonmetallic material非金属材料nonmetallic pipeline非金属管线