concave and convex meaning in English
凹面和凸面
凹凸
Examples
- Alternative characterization of concave and convex functions which is sometimes useful .
对于凹函数和凸函数还有一个替补的表征，有时它是有用的。 - Experimental investigation on noise characteristics of jets impinging on concave and convex plates
凹凸板冲击射流噪声特性的实验研究 - These methods are lagrange mean - value theorem , monotone function , extreme value of function , taylor formula , concave and convex function
提出六种常用的方法，并指出每一种方法的适用类型、解决问题的关键和证明问题的具体步骤，最后结合实例说明方法的可用性。 - High speed impact hammer is used to heat and hammer the seams of the upper and vamp and the edge of welt so as to eliminate the concave and convex and to flatten the edgefold with uneven thickness
采用高速冲击锤头对皮鞋的鞋面鞋帮的接缝、鞋口的边缘进行加温锤击，使凹凸不平、厚薄不均的折边整平。 - Application : grind the surface of wood and metal . lap the hole and surface of work - piece . gind and lap flexible contoured suface , especially concave and convex surface profiles
用途：应用于木材和金属的表面抛光、工件的内孔、外壁的精磨、用于弯形物的曲面、尤其是凹凸表面和侧面的研磨、抛光。适用于铸铁、木材、钢材、有色金属、塑料。