nonagonn.九边形nonadv.[拉]非；不是non-profit foundation公益基金non-classical formula时方non-equal rigid drift不等刚度漂移nonconcurrent insurance不同时保险Non-ossifying fibroma非骨化性纤维瘤non-Pareto efficiency非帕累托效率non-current liability非流动负债non-settleable solids非沉降性固体颗粒noncriminal alternative非犯罪替代方式,非犯罪替代措施non-labelled compound未标记化合物