Viscosity: viscosity is the crude oil in the flow caused by the internal frictional resistance, crude oil viscosity depends on temperature, pressure, dissolved gas and its chemical composition.
粘度：原油粘度是指原油在流动时所引起的内部摩擦阻力，原油粘度大小取决于温度、压力、溶解气量及其化学组成。
Experimental results indicate that the crude copper composition in current copper convertor can be quickly and precisely determined by the proposed soft-sensing model.
实验结果表明，该软测量模型能快速得出转炉当前炉次的粗铜成分数据，具有很高的精度。
Since the chemical composition of crude oil is complicated and many other factors affect the emulsion process, it is difficult to choose exact demulsifying agent for exact oil.
由于原油组成的复杂性，加上影响形成乳化原油的因素众多，给原油破乳剂的研究工作带来许多困难。
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