By use of geometric model and mathematic calculation, this paper draws a way for solving the alignment of vertical and rotational equipment.
通过建立几何模型、数学计算，得出一种有效解决竖直式转动设备对心的方法。
Because the dynamic character of PMA is affected by permanent magnet and exciting current, in this paper, new mathematic model and equation are established and the calculation result is analyzed.
在动态计算中本文根据永磁和激磁电流共同作用这一特点，建立了相应的数学模型，给出了动态微分方程组的求解方法，并对动态过程进行了分析。
By analysis, a calculation method of the initial time and allowable time for steel-bar corrosion is built. Then a mathematic model for anti-slide pile service life is established.
分析提出了钢筋开始锈蚀时间及钢筋锈蚀时间计算方法，据此提出了抗滑桩安全使用寿命预测数学模型。
By combining the motion state equation with the Kalman filter algorithm, a mathematic calculation method for accurate prediction of the polished rod speed of the pumping unit is worked out.
把抽油机运动状态方程和卡尔曼滤波算法相结合，构造了一套适用的精确预测抽油机悬点速度的数学算法。
The mathematic model of the influence of roll crown variation on gap setting can be got by regression based on lots of calculation results.
并基于不同条件的计算结果，回归出轧辊凸度变化对辊缝设定影响的计算模型。
The mathematic model of the influence of roll crown variation on gap setting can be got by regression based on lots of calculation results.
并基于不同条件的计算结果，回归出轧辊凸度变化对辊缝设定影响的计算模型。
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