The central sampling drilling is a new method which has the characteristics of efficient, accurate sampling and high percentage recovery of Core.

中心取样钻探是一种全新的钻探方法，具有效率快、取样准确、岩样采取率高的特点。

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Results computed indicate that not only high percentage recovery of high concentration nonpermeate gas but also high concentration of permeate gas were obtained by this system.

用此流程可得到高浓度不易渗透气体的高回收率，同时得到高浓度的易渗透气体。

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Yes, down a percentage point or so from its recent high, but in a supposed recovery a horrible number still.

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