Matthews used the fact that for any large collection of random numbers, the probability that any two have no common factor is 6/pi2.
马修斯的计算利用了这样一条定理：对于任意一群随机数的大集合，任意两个数没有公约数的概率为6/pi2。
The in-version result can reflect the transverse variation of the main layer of PI2, PI3, it provides the technique guarantee for drilling the first ladder horizontal well successfully.
反演结果能明显反映出主力油层葡I2、葡I3层的横向变化，为成功完钻大庆第一口阶梯状水平井提供了有利技术保证。
The in-version result can reflect the transverse variation of the main layer of PI2, PI3, it provides the technique guarantee for drilling the first ladder horizontal well successfully.
反演结果能明显反映出主力油层葡I2、葡I3层的横向变化，为成功完钻大庆第一口阶梯状水平井提供了有利技术保证。
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