noniusn.游标nonadv.[拉]非；不是non-gauss noise非高斯噪声Non-system risk非系统性风险nonbusy condition非忙状态,非占线状态non-load action非荷载作用non-mesh method无网格法non-neutral tax非中性税收non-tuberculous非结核性的Non-thermal arc非热电弧non-print cycle非印字周期non-nitrogenous非氮性的