Synthetics are not good enough.

合成橡胶就不够好。

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Use a low heat setting for synthetics.

本品是地热定性合成品。

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This is especially the case with soft materials, like rubber and other soft synthetics.

这是特别是与软质材料，如橡胶等软合成纤维。

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This is especially the case with soft materials, like rubber and other soft synthetics.

这是特别是与软质材料，如橡胶等软合成纤维。

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