NODC=National Oceanographic Data Center 全国海洋学数据中心([美]NOAA)nodv.点头；打盹；（使）摆动n.点头；同意nod smilingly颔首微笑nodulargoiter结节性甲状腺肿nodding bromen.弯穗雀麦noduli vermis[医] 蚓部小结nodular mixed结节性混合的nodular torus[医] 结状隆凸nodding spike下垂的穗nodon-valve电解铅铝整流器nod agreement点头表示同意nodi gutturis[医] 喉结