force resultant meaning in English

力的合成

Topics covered include : static equilibrium , force resultants , support conditions , analysis of determinate planar structures ( beams , trusses , frames ) , stresses and strains in structural elements , states of stress ( shear , bending , torsion ) , statically indeterminate systems , displacements and deformations , introduction to matrix methods , elastic stability , and approximate methods
主题包含了：静力平衡、合力、支承条件、静定平面结构(梁、桁架、构架)分析，结构构件之应力与应变，应力状态(剪力、弯矩、扭力) ，静不定系统，变位与变形，矩阵方法介绍，弹性稳定及近似值解法。