短语词组短語undercut profile 鑽蝕斷麪圖;切口型undercut weld 底切銲接undercut slot 梯形割縫Undercut Handing 底部切削処理Undercut Competition 這個選項undercut price [貿易]削價;壓低價格undercut ball 下切球Undercut Depth 倒凹深度to undercut 使打折釦 返回 undercut