Synthetic rubber of equal quality still cannot be practicably manufactured.

与天然橡胶同等质量的合成橡胶仍然不能实际生产。

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But of course, quantity doesn't necessarily equal quality.

但当然，数量多并不一定说明质量高。

youdao

But of course, quantity doesn't necessarily equal quality.

但当然，数量多并不一定说明质量高。

youdao