摩擦阻力系数随着流速增大而增大，随着温度的升高而减小，而其随着压力的变化特别复杂。
The frictional resistance factor increases with the increase of the flow velocity, decreases with the increase of temperature and its variation law with the pressure is complicated.
结果本法在萃取川芎挥发油得到的传质系数随着温度的升高略为增大，随着流量的增大而增大，随着压力的增大而减少。
RESULTS: Coefficient of mass transfer was slowly increased as the extraction temperature elevated, and was in accord with flow and in contrast with pressure.
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