These Numbers refer to the viscosity or flow resistance within the structure of the oil.
这些数字指的是粘度或流动阻力的结构内的石油。
The critical problem in heavy oil production is high viscosity and poor flowability.
稠油的流动性差，粘度大，开采的关键问题是降粘、改善其流动性。
The critical problem in heavy oil production is high viscosity and poor flowability.
稠油的流动性差，粘度大，开采的关键问题是降粘、改善其流动性。
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