By analyzing the volume mass-transfer coefficient, the optimal operating flow-ratio and packed density were obtained.

通过考察体积传质系数，确定了纤维液膜萃取分离器的最佳填充密度和最佳流量比。

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Bernal of the University of London, who packed hard spheres into a rubber vessel in such a way as to obtain the maximum possible density.

伦敦大学的伯纳尔教授把硬球体装入橡胶容器中，以获得可能的最大密度。

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The sheer density of ideas packed into each show makes listening demanding, as well as enjoyable, and can leave the audience half-dazed at the end of an episode.

每一集中创意想法的十足密度使得聆听既富于乐趣又有些吃力，让听众们在一集结束的时候觉得发昏。

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"Crude" density is achieved by districts packed with taller and taller buildings but doesn't, on its own, generate innovation or economic development.

WSJ: To Build Creative Cities, the Sky Has Its Limit by Richard Florida