frictionaladj.摩擦的；由摩擦而产生的frictionn.摩擦；摩擦力；分歧friction cleaner摩擦式清洗器frictional layer摩擦层friction winding摩擦提升friction gearing摩擦传动friction current摩擦流friction-meter摩擦系数测定仪friction- disc摩擦片friction reentry利用摩擦阻力再入friction factors阻力系数frictional shear摩擦切变