大众媒体让我们能够记录信息、并且能向数量庞大且分散的观众快速传达信息。

Mass media allow us to record and pass information rapidly to a large, scattered audience.

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揭示出植被分类的原则从单一性向综合性，分类方法从外貌分类向数量分类的发展趋势。

It also revealed the trend that the principle of vegetation classification is becoming comprehensive and classification methods are utilizing numerical classification instead of exterior one.

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占补平衡实现由数量平衡向数量-质量平衡管理的升级，已成为当前土地管理的迫切要求。

It has become the urgent requirement of current land management that Cultivated land requisition-compensation balance from quantity balance to quantity-quality.

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So, you might ask then well what is the significance of shooting different amounts of photons at a metal?

所以，你们可能会问向,金属发射不同数量的光子,有什么重要性？

麻省理工公开课 - 化学原理课程节选