2 d integral equation 二维积分方程
The paper introduces a process of 3 1/2 bite digital voltage using double-integral style A/D transform 5G14433chip as the core.
介绍了选用双积分型A/D转换器5G14433芯片为核心设计组装一个3（1/2）位数字电压表的实现过程。
Tt is suggested in this paper that the calculation of the gravitational anomaly is performed by boundary elements method, curvilinear integral is for 2-D object and surface integral for 3-D object.
本文提出用边界单元法计算重力异常，二维形体用线积分，三维形体用表面积分。
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