Production attitude of buried-hill inside formation is initially determined by using variable angle formation dip treatment and single point artificial calculation method.

利用变角度地层倾角处理和单点人工计算法，初步确定了潜山内幕地层的产状；

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It can be obtained by applying directly twist operation under a table and need not input artificial variable. After this, we may find optimal solution under the table as the same as simplex method.

它不必引入人工变量而可在一种表格之下直接应用旋转运算而获得，之后就在同一张表格下完全和单纯形法一样求最优解。

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Based on the new ANN (artificial neural network) inverse system control method, the AC variable frequency speed control system is analyzed and experimented.

本文运用神经网络逆系统这一新的控制策略，对异步电机变频调速系统进行可逆分析与控制试验。

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