法定: legal; statutory基准线: base line; datum line; datum ...标定基准线: thrust line固定基准线: fixed datum法定基准面: od; ordinance datum基准线: base line (bl); datum line; datum; fiducial line; reference line基准线；基准面: datum line法定基金: statutory fund固定基准: fixed datum; fixed reference固定基准点: fixed datum判定基准: criteria; standard of criterion选定基准: selected reference测量基准线: measuring baseline垂直基准线: vertical datum lines; vertical reference line方位基准线: azimuth reference datum飞弹基准线: missile reference line (mrl)光学基准线: optical reference line活字基准线: base line基线，基准线: basic line基线，基准线，时基: bl base line基线；底线；基准线: baseline基准线,参考线: reference line基准线；基线: base line基准线标志: datum mark基准线差: datum line differential
