这些容器按大小分类。

The containers are graded according to size.

《牛津词典》

他继续按照他的分类学，把鲸按大小分为三大类或三本书。

Continuing in his taxonomy, he groups whales into three major categories, or books, by size.

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针筒被大批地回收，你可以在这里看到它的规模，按大小来分类，全部用手，再送囘市场上去卖，所以再回收再使用。

And they are collected en mass — you can see the scale of it here — and sorted out, by hand, back into the right sizes, and then put back out on the street.

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