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
undercutting under shallow cover浅埋暗挖
undercut-and-fill mining method下向胶结充填法
undercutting with shallow overburden浅埋暗挖
undercutting under shallow overburden浅埋暗挖
undercutting in shallow-bedded zone浅埋段暗挖
Undercut relief and lead-in chamfers.英文名称: ISO screw threads.