δij represents the displacement of the _______ structure at the action point and in the direction of _____ due to the unit force of the redundant _____ alone in the force method.
A、primary, Xi, Xj;
B、primary, Xj, Xi;
C、original, Xj, Xi;
D、original, Xi, Xj
发布时间:2025-05-20 04:10:11