底面basal face;basal plane;basal surface;base plane;bottom surface;culet;grade level;lower surface;sole;subface;subsurface详细»
底面basal face;bottom surface;subface;subsurface;under bed;undersurface详细»
底面bottom surface;sill;subface详细»
底面base plane;ground plane;groundplane;lower surface详细»
底面basal face;base surface;bottom surface;lower plane;lower suface;subface详细»
底面basal plane;basal surface;groundplane;soffit;solar surface;sole详细»