将在地质方面常用的二元二次趋势面问题，推广到P元Q次超趋势面，并分析了其中的原理和计算方法。
P-variate Q-time hyper-trend surface method is derived on the basis of binary quadric hyper-trend surface method, and its algorithm and programming method are presented.
当一次趋势变化形成的时候，第二次反弹将更成功地突破到顾比复合移动平均线长期组上边缘之上。
When a trend change develops the second rally rebound is more successful in breaking above the upper edge of the long term GMMA.
根据油田原油产量为随机线性变化趋势，采用二次指数平滑方法进行预测。
According to the random linearity change trend of crude production rate, using the secondary exponential smoothing predicts the crude production rate.
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