水线面惯性矩 moment of inertia of waterplane

惯性矩面积仪 [仪] integrometer

面积惯性矩 area moment of inertia ; area inertia moment ; moment of inertia of area

惯性面积矩 area moment of inertia

一平面区域之极惯性矩 lamina polar moment of inertia of