non rep不要重配, 不要重复nonadv.[拉]非；不是nonrecombinat clone非重组克隆nontransparent task非透明任务non functional hole无功能孔nonsingular quadric非奇二次曲面,满秩二次曲面nondegenerate level非简并能级non-slip terrazzo防滑水磨石nonheat-treatable不能热处理的Nonmonotone methods非单调算法non-black pigment非黑色颜料nonpermissible code禁用码