The projection plane of the curved surface MN on the vertical plane is M′N(xiāo)′. Thearea of the projection plane is Ax. The liquid M′N(xiāo)′N(xiāo)M was taken as a detached body.The equilibrium of forces acting on the detached body was analyzed as shown in Fig.2-23b. Th......(本文共 1099 字) [閱讀本文] >>