曲线: curve; curved line的: 4次方是 The fourth power of 2 i ...凹部: dent; valley; recess曲线的凹谷: saddle曲线的: curved; curvilineal; curvilinear; curvilnear; overshoot凹部: dent; valley; [地质学] recess◇凹部电流 valley current; 凹部电压 valley voltages形曲线的: ogee超双曲线的: ultrahyperbolic垂曲线的: catenary等震曲线的: coseismal曲线的包络: envelope of curves曲线的包线: envelope of curves曲线的闭路: loop of a curve曲线的长: length of curve曲线的长度: length of a curve曲线的法线: normal to a curve; normal to curve曲线的方向: direction of curve曲线的分枝: branch of a curve曲线的分支: branch of a curve曲线的峰: spike曲线的拐点: point of inflexion on a curve曲线的弧长: arc length of acurve曲线的极线: line polar or a curve曲线的尖点: cusp of a curve曲线的交点: intersect