... magnification factor 放大倍数 method of polar coordinates 极坐标法 mire microgeomorphology 池沼微地貌 ...
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At present, the method of polar coordinates has become an easy, fast and accurate way in midline measure of road and measure in bridge construction.
目前,极坐标法放样已成为道路中线侧设和桥梁施工测量的一种简便、迅速、精确的方法。
The computation of natural convection in the annulus between horizontal concentric cylinders using spectral element method in polar coordinates is presented in this paper.
提出了将谱元方法应用到极坐标系下,利用极坐标系下的谱元方法求解环形空间内自然对流问题。
Firstly, the expressions of free vibration of moderately thick plates in polar coordinates are derived and the general solutions are obtained by the means of method of separation of variables.
首先,导出了用极坐标系描述的中厚板自由振动板的微分方程,用分离变量法求得其一般解。
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