In the process of preparation of biodiesel, the immiscibility of oil and alcohol leads to low transesterification rate and low production efficiency.

在生物柴油生产过程中，由于原料油与醇不互溶，导致生物柴油生产过程中酯交换速率低，影响了生产效率。

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The relative average error between predicted oil displacement efficiency and actual value is 8.7%, the accuracy meets demand of production.

驱油效率实际值与预测值平均相对误差8.7%，精度满足生产要求。

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Factors influencing oil recovery efficiency can generally be classified into two large categories: geological features of reservoirs and development and production technologies.

影响采收率的因素大体上可以分为油藏地质特征与开发、采油技术两大类。

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