石油主要是由烷烃、环烷烃和芳香烃组成的混合物，具有致癌、致畸、致突变的潜在性。
Petroleum is a kind of compound composed of alkane, cyclane and aromatics, which have the potentiality leading to cancer, deformity and mutation.
石油主要是由烷烃、环烷烃和芳香烃组成的混合物，具有致癌、致畸、致突变的潜在性。
Petroleum is a kind of compound composed of alkane, cyclane and aromatics, which have the potentiality leading to cancer, deformity and mutation.
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