耳机: earphone; headphone; receive ...基准点: reference point; datum point耳机基准面: reference plane of earphone水准点;基准点: benchmarkt基准点: t t reference point基准点: benchmark; bm bench mark; data point; datum mark; datum point; directing point; fiducial mark; fiducial point; fundamental point; point of reference; reference center; reference mark; reference point; referencepoint; referring point; rp; stencil, fiducials; zero reference安装基准点: base point of installation installation datum mark参考点,基准点: point of reference乘坐基准点: seating reference point传输基准点: transmission reference point大地基准点: geodesic datum; geodetic datum地方基准点: local datum洞内基准点: point rod高基准点: high reference point固定基准点: fixed datum国家基准点: ordnance datum航途基准点: way-point核对基准点: check point基准点标高: datum mark基准点高程: benchmark elevation机场基准点: aerodrome reference point计量基准点: gage point; gauge point检尺基准点: dipping reference point; gauging reference point接地基准点: earthing reference points(erp)零时基准点: zero time reference