Nitin尼廷nitn.虱子；没用的人nitinol alloy network stent镍钛记忆合金支架nitrocellulose surface coat硝化纤维表面涂层Nitraria tangutorun Bobr.唐古特白刺nitrous oxide-barbiturate氧化亚氮巴比妥酸盐Nitzschia hantzschiana Rabh硅藻nitriding-laser quenching渗氮激光相变硬化Nitraria tangutorum Bobr.唐古特白刺nitrosyl heme-polypeptide亚硝基血红素多肽nitride iron magnetic fluid氮化铁磁性液体nitrocellulose crack finish硝基裂纹罩面漆