Question

三次[sān cì]1.■triple; ter-; tri-三次倍频器 triductor三次不尽根 cubic surd; surd of third order三次采油 tertiary oil recovery三次重捕法 triple catch method三次电流 tertiary current三次对称轴 axis of trigonal symmetry三次对称轴线 three-fold symmetry axis三次多项式 {数} cubic polynomial三次反射 triple reflection三次方程（式） cubic equation三次方程问题 cubic problem三次风 {机} tertiary air三次根 cube root三次过荷继电器 three times overload relay三次函数 cubic function三次幂 third power; cube三次挠线 twisted cubic三次绕组 tertiary winding三次抛物线 cubic parabola三次曲面 cubic surface三次曲线 cubic curve; cubic三次取样式数字电压表 triple sampling type digital voltmeter三次渗碳体 tertiary cementite三次式 cubic expression tertiary三次收敛 cubic convergence三次调谐 third harmonic tuning三次线圈 tertiary coil三次谐波序列 triplen三次行程回波 triple transit echo; triple travel signal三次掩模技术 trimask technique三次样条 （函数） cubic spline