undercutter n.凹形挖掘鏟(截煤機(jī))undercuts v.削弱；廉價(jià)出售或工作；從下邊切n.（牛的）嫩腰肉；下部切割；切口；切球undercut weld [土木建筑工程]底切焊接undercut slot [能源科學(xué)技術(shù)]梯形割縫undercut profile 鉆蝕斷面圖；切口型undercut price [貿(mào)易] 削價(jià)undercut ball [體育]下切球undercut area [口腔] 倒凹區(qū)undercut (v.) undercut vt. 廉價(jià)出售；較便宜的工資工作；從下邊削球；削弱；根除 vi. 底切；根切 n. 底切；牛腰部下側(cè)嫩肉；砍口；切球undercurrents 暗流undercurrent (n.) undercurrent n.暗流；潛流undercure n.欠處理(欠熟；欠硫化；硫化不足)undercrown 頂部底面undercroft (n.) undercroft n.地下室；地穴(尤指教堂的墓穴)undercoverage 總量差額undercover work 臥底工作undercover operation