Doing so depends on understanding the granular structure of the rock it is trapped in.
要做到这点，人们需要对某些岩石的颗粒结构有所了解，而这些岩石是有石油困于其中的。分。
For rock blocks with different strengths, the curves of grading of granular have strong similarity and relativity and can be described by polynomial.
对于强度不同的岩块，其级配曲线具有很强的相似性和相关性，并可用二次多项式进行描述。
For rock blocks with different strengths, the curves of grading of granular have strong similarity and relativity and can be described by polynomial.
对于强度不同的岩块，其级配曲线具有很强的相似性和相关性，并可用二次多项式进行描述。
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