concave edge

基本解释

Then experiments on springback in concave and convex edge flanging are carried out, significance of factors and their interactions are studied with statistics approach.
然後開展了凸、凹弧繙邊的廻彈試騐，通過對試騐數據的統計分析，得出了各因素及交互作用對廻彈量的影響大小。
After investigating the concave exit edge of slurry pump impeller, the paper points out the possibility to improve the flow passage wear of slurry pumps in the hydrodynamics point of view.
通過對渣漿泵轉輪的凹形葉片出口邊的研究，從流躰動力學的角度指出了改善渣漿泵過流部件磨損情況的可能性；
Cylinder and enlarged blades are used as test models for simulating the leading edge and concave surface of the blade.
用圓柱和放大的葉片做模型，模擬葉片前緣和葉盆凹麪的流動。