This activity took only a few weeks and started as an idea with a small group.

这项活动只花了几个星期，一开始是一小组人的主意。

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The collaboration space, made up of small group seating, offers an environment for more structured and experimental group activity where the sharing of ideas occurs.

合作空间由小团体座椅组成，为更有组织的实验小组活动提供了活动场所，便于分享和交流。

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In addition, a group of small peptide with the binding activity of human heparanase small subunit is further obtained.

另外，还得到了一组具有人乙酰肝素酶小亚基结合活性的小肽。

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Researchers measured brain activity of 47 healthy adults -- a small but scientifically valid size group for this type of study -- while using a mobile device.

CNN: Cell phone exposure increases brain cell activity