This paper has analysis and research the resident property income and expenditure, social function and the Buddhist nuns'economic situation of Dunhuang Buddhist nunneries.

本文对吐蕃归义军时期敦煌尼寺常住财产的收入与支出、 尼寺的社会功能以及比丘尼的经济状况进行了分析与研究。

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Through sensibility analysis and objective function contour chart analysis the research of functional property of trapezoidal mechanism is further improved.

同时在灵敏度分析和对目标函数等值线图进行分析的基础上，指出了进一步提高梯形机构工作性能的研究方向。

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In this paper, using the property of trace of matrix and the method of generating function, we obtain all the eigenvalues of a matrix which appears in stability analysis.

利用矩阵的迹的性质和发生函数方法，给出了稳定性分析中一个矩阵的所有特征值。

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