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在实际冲杯过程中会产生数个制耳（ 通常为４ 个或８ 个） ， 且每个制耳不一定都一样高， 传统的制耳率计算公式是由算术平均法推导出来的。通过数学推导和论证发现这种计算方法误差很大，且自相矛盾。由此提出新的设想： 每个制耳对平均制耳率的贡献是不一样的， 并以制耳的相对高度作为加权系数， 从而推导出新的平均制耳率计算公式。经验算， 该公式的计算精确度更高， 并发现传统的平均制耳率计算公式只是新公式中当每个制耳大小相等时的一个特例
In the actual process of cup will produce a few ears (usually 4 or 8), and each ear are not necessarily the same high, the traditional ear formula is derived by arithmetic mean. Through mathematical deduction and demonstration, we find that the calculation method has great errors and contradictions. Therefore, a new idea is put forward: each ear makes a different contribution to the average ear-ear rate, and uses the relative height of ear-making as a weighted coefficient to derive a new average ear-ear rate formula. Experience has shown that this formula is more computationally more accurate and finds that the conventional mean ear formula is only a special case of the new formula when each ear size is equal