Based on experimental observation and strict mathematical theory demonstration this paper doubts the conventional method to extract water cut of high water cut oil reservoir and the measuring results.

通过实验观测和严密的数学理论论证对高含水油层中求含水率的传统方法和测量结果提出了质疑。

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Photo-elastic experimental method was applied to investigate mechanism of rock- bolting and observation results.

本文论述了用光弹性实验方法探索锚杆支护作用机理的实验概况及观测结果。

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