Circular grads integral projecting 圆周梯度积分投影
The experimental result shows that the curves corresponding to circular integral projecting and circular grads integral projecting own excellent steadiness when target rotates and flexes.
实验结果表明，圆周积分投影和圆周梯度积分投影曲线具有良好的旋转和尺度不变性。
A new standard curve chart for projecting production has been proposed in accordance with circular confined complex reservoir.
针对圆形封闭复合油藏，提出一种新的用于预测产量的标准曲线图版。
Besides, the projecting formula of the circular arc is also listed in the paper, which can offer the computer a calculating method to draw stereoscopic projection.
本文还给出了圆弧的投影方程，为计算机绘制极赤图提供了计算方法。
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