hydraulic radius

例句：

1. 1. The design of the pump requires aprecise calculation of the hydraulicradius.
   泵的设计需要精确计算液压半径。
2. 2.The hydraulic radius is animportant factor in determining the efficiency of thesystem.
   液压半径是确定系统效率的重要因素。
3. 3.The hydraulic radius of thepipe was measured to ensure its proper functioning.
   测量管道的液压半径以确保其正常工作。