NBSn.美国国家标准局(英国新标准线规)NBabbr.注意(=nota bene)Nb-based ultrahigh temperature alloy铌基超高温合金Nbsp selling and administrative expense推销及管理费用Nb-based ultrahigh-temperature alloy铌基超高温合金Nb-bearing microalloyed low carbon steel铌微合金低碳钢NBPTS early adolescence generalist standards.台北市：心理出版社。NBR toughening two-component acrylic adhesive用NBR增韧双组分丙烯酸酯粘合剂Nb-silicide-based ultrahigh temperature alloy铌硅化物基超高温合金