fnb意思是：第一国家银行。
双语例句：
1、Patients with unilateral orbital masses underwent fine needle biopsy ( FNB) guided by CT.
对26例单侧眶内肿块患者行CT介导细针穿刺活检术（Fine－needlebiopsy，简称FNB）。
2、To people watching inside the FNB stadium and in the wider South Africa, he said: The world thanks you for sharing Nelson Mandela with us.
奥巴马对FNB体育场内在座的观众以及南非群众说：世界感谢你们，能与我们分享曼德拉的伟大。
3、Conclusion: Sore throat and abnormal sensation of throat are the important presentations of SAT, thyroid SPECT imaging and thyroid FNB are valuable on diagnosing SAT.
结论：咽痛和咽异感症是亚急性甲状腺炎的重要症状，甲状腺SPECT和FNB对亚急性甲状腺炎的诊断具有重要价值。
4、For the thousands of mourners inside Johannesburg's FNB Stadium it was meant to be a fitting tribute to a 'giant of history'.
对约翰内斯堡FNB球场内数以千计的曼德拉追悼者来说，这场世纪葬礼的确是对曼德拉这位历史巨人最好的致敬。
5、Using PCR technology, we amplify the fnb and cna genes of S.aureus encode fibronectin binding proteins ( FnBP) and collagen binding proteins ( Cna).
基于PCR技术，分别扩增了纤连蛋白结合蛋白（FnBP）和胶原蛋白结合蛋白（Cna）的基因fnb和cna。