在重点江河的护岸工程设计中，经常出现一般水利工程设计较少遇到的专业技术用语，如何理解和正确使用这些专业名词对做好护岸工程设计非常必要。弯道环流弯道水流内部的旋转运动，在横断面上的投影星环形，在主流叠加在一起呈螺旋式前进运动。弯道中可能只有一个大的环流，也 In the design of bank protection of key rivers, professional and technical terms that are rarely encountered in the design of general hydraulic engineering often appear. How to understand and correctly use these professional terms is very necessary for the design of bank protection engineering. Curved loop Curved water flow within the interior rotation, in the cross-section of the projection star ring, superimposed in the mainstream spiral forward movement. There may be only one large circulation in the bend, too