nonamern.九聚物nonadv.[拉]非；不是nonnegotiable stocks非流通股nonfibrillated fiber非原纤化纤维non-toxic coatings无毒涂料non-staggered grid同位网格noninvasive sampling非损伤性取样nonnegafive matrices非负矩阵non-friction guide非摩擦导轨,滚动导轨nonreversible defect不可逆型缺损, 不可逆缺损nonstatistical error非统计误差nonreversible clutch不可逆离合器