Focusing on the mass population balance model, the effect of granule size distribution on the packing voidage will be discussed in detail.

研究工作将在质量集合平衡模型的基础上，考虑造粒粒度分布对孔隙度的影响。

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Ye held for writing for daily life and mass population, which is still of a strong operational significance and practical value and enlightens a lot on middle school writing tutoring.

叶圣陶先生主张写作的生活化和大众化，这一观点至今具有很强的现实意义和实践价值，给中学写作教学很多的启示。

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The so-called population urbanization not only means the increase in the numbers of cities and population, but also the tendency and process of the mass population gathering towards big cities.

所谓人口城市化不仅表现在城市数量的增多与城市人口比重的提高，而且还表现为众多人口日益向大城市聚集的趋势和过程。

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Australia's defenses against the outbreak of the H1N1 virus will be boosted when mass flu vaccinations start next month after officials fast-tracked a scheme capable of covering it's entire population of 21 million people.

VOA: standard.2009.08.25

Today, no country is in the old sense far away when the consequences of regional instability and terrorism - and then also climate change, poverty, mass population movements and even organised crime - reverberate quickly round the globe.

BBC: In full: Brown security statement

Petersburg, this location has widely been criticized by team officials, members of the media, and fans alike as inconveniently off-center from the critical population mass of the region.

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Kazakhstan has additional obstacles: Cold weather, few tennis courts and a large land mass with low population density, which makes for expensive travel and greater difficulty in creating clusters of talent.

WSJ: How to Build a Tennis Empire