The finite element method is applied in this paper to the calculation of the gravity anomaly for the two-dimensional body, which has arbitrarily shape and homogeneous density in each element.
本文用有限单元法计算形状任意、密度分块均匀的二维物体的重力异常。
Rectangular wave of arbitrary shape shall be output, change rate of AC plus-minus shall be regulated arbitrarily, and the speed of exchanges over zero shall be very quick.
要求此电源能输出任意形状的矩形波，交流正负极性比率可任意调节，交流过零速度极快。
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