undercutv.削弱;廉价出售或工作;从下边切n.(牛的)嫩腰肉;下部切割;切口;切球
undercut feature侧凹特征
undercutting tool平面切刀,端面切刀
undercutting method下切法
undercut trimmer sa脚踏截锯机
undercut commutator磨损过深的换向器
undercut trimmer saw脚踏截锯机
undercut left inward左腿向右后摆越
undercutting chamber拉底峒室
undercutting of rates削减运价
undercut-slope bank底切坡岸