NLabbr.[棒球]国家联盟(=National League)abbr.纽芬兰与拉布拉多省(=Newfoundland and Labrador)abbr.北纬(=North Latitude)NLOS UV transmission非视线紫外光传输NLC-uhraviolet light紫外线nleteorological analysis计量分析Nl Fuzzy Sets and Systems模糊集与系统nlceromembranous gingivitis[医] 溃疡假膜性龈炎, 坏死溃疡性龈炎Nl Image and Vision Computing图象与视觉计算Nl Theory of Computing Systems计算系统理论Nl Machine Vision and Applications机器视觉及其应用Nl Journal of Symbolic Computation符号计算杂志NLSP Network Layer Security Protocol网络层安全性协议