... 不定函数 indeterminate function 不定积分 antiderivative 不定积分（法） indefinite integration ...
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function indeterminate 不确定函数
The truss arch structure is a three-dimensional higher statically indeterminate structure, and no definite expression of the performance function can be given for its unbelievable complexity.
桁架拱结构是一个高次超静定的复杂三维结构，构件的功能函数没有明确表达式。
A method to use the function of EXCEL layout evaluation to calculate statically indeterminate structure problem was introduced in this paper.
本文介绍了如何应用电子表格软件EXCEL的“规划求解”功能解算超静定结构问题的方法。
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