reference to提到referencen.参考；参照；出处；推荐人；推荐函v.注明出处；附参考资料reference voltage s基准电压源reference ellipsoid基准椭圆reference dimension基准尺寸reference direction基准方向reference cartridge标准弹reference bandwidth基准带宽reference capillary参比毛细管Reference databases参考数据库reference retrieval参考检索reference potential基准电势,标准电位,参考电位,基准势