基准；基准面: datum基准线；基准面: datum line安装基准面: erection datum plane; erection reference plane剥蚀基准面: base level of denudation爆破基准面: shot datum标准基准面: standard datum plane冰川基准面: glacier table参考基准面: reference datum参考面, 基准面: reference surface参考面，基准面: reference surface测深基准面: sounding datum潮高基准面: tidal datum plane潮位基准面: datum of tidal level; tidal datum plane潮汐基准面: tidal datum plane潮信基准面: tidal datum沉积基准面: base level of deposition沉降基准面: founding level次基准面: subbase level大地基准面: datum; geodesic level; geodetic level当地基准面: local base level低潮基准面: low tide water datum; low water datum地方基准面: local datum地震基准面: seismic datum耳机基准面: reference plane of earphone基准面，参考点: reference point基准锚头: reference anchor
