The forces must satisfy the conditionsofequilibrium and produce deformations compatible with the continuity of structure and the support conditions.
所有力必须满足平衡条件并产生与结构连续性与支承条件相协调的变形。
2
In those cases, though, you'd have quite a reasonable equilibrium, spontaneously that is there would be a lot of reaction that went if you simply started under practical conditions and let it go.