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本文用工程算法对组合板框机架的预紧问题进行了分析，导出了确定合理预紧力的算式，并在试验样机上进行了试验研究。
In this paper, the prestressing problem of the combined frame and frame was analyzed by using the engineering algorithm. The formulas for determining the reasonable pretensioning force were derived and tested on the experimental prototype.