名词
中文翻译：外部预应力
同义词：
['externally applied stress', 'externally applied load']
例句：
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1. The structure is designed to withstand external prestressing forces.
该结构设计用于承受外部预应力。
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2.In the construction of bridges, external prestressing is often used to strengthen the beams.
在桥梁建设中，外部预应力通常被用来加强梁。
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3. The engineer analyzed the results of the external prestressing test and determined the optimal design parameters.
工程师分析了外部预应力测试的结果，并确定了最优的设计参数。