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在应用虚位移原理解题的过程中,同学们常常会提出一些问题,其中有两个问题我认为是值得总结和探讨的,下面就对这两个问题加以讨论。
During the process of solving the problem using the principle of virtual displacement, students often raise some questions, two of which I think are worth summarizing and discussing, and the following two issues are discussed.