单词	concave region
释义	concave region 凹域
随便看	arrangement of government officials arrangement of heat exchangers arrangement of heating system arrangement of high-pressure blast arrangement of hydro junction arrangement of ideas analysis law arrangement of illumination lamps arrangement of immigrants arrangement of inclined elevator arrangement of indoor separate mode arrangement of induction-coil circuits arrangement of industrial shaft furnaces arrangement of information arrangement of institutions arrangement of instruments arrangement of insulation arrangement of insurance arrangement of investigation holes arrangement of items arrangement of jet nozzles arrangement of jet pipes arrangement of labour arrangement of lamps arrangement of lanterns arrangement of letters