Balloons are made of rubber. Rubber is made up of polymer chains.

气球是由橡胶所制成的，橡胶是由聚合物链组成。

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The solution was a solid material that is made of two linked polymer chains.

这种新的解决方法，是用由两种连在一起的聚合物链组成的固态材料来解决。

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It can also be manufactured from the large polymer chains found in cereals, grasses and trees.

此外，它还可以从在谷、草与树中发现的聚合物链中制造出来。

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The ribosome reads the code and assembles long polymer chains out of amino acids.

BBC: Tiny molecular machine apes cellular production line