In this paper, the gaseous viscosity factor is simplified and deduced on basis of supposed gas, and then some supposal is cleaned and much more strict deductions are given.
在对气体作近似假设的基础上，对气体粘滞系数进行简化推导，而后再逐步撤除一些假设，并作出了较为严格的推导。
The calculation results showed that the friction factor and apparent viscosity of hydrate slurries increase with increasing pressure and flow rate.
计算结果表明，压力高和液体流量大的体系，其摩擦阻力系数和表观粘度值均较高。
As a consequence, the viscosity of material is an important factor in the study of singular field of the crack-tip.
因此，在研究裂纹尖端的奇异场时，材料的粘性效应是一个重要的因素。
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