词汇	窊坎
释义	窊坎 wā kǎn窪地。
随便看	angle of vanishing stability on cushion angle of variation angle of vbelt angle of v belt angle of vee angle of Vee angle of velocity vector angle of vertical angle of vgroove angle of v groove angle of V-groove angle of view angle of viewing field angle of view of camera lens angle of view of culture angle of view of telescope angle of Virchow angle of visibility angle of vision angle of vision in research angle of wall angle of wall friction angle of water entry angle of wave approach angle of wave encounter