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.
试验结果表明：水动力弥散和混合电子受体条件下的土著微生物降解是乙醇和单环芳香烃(BTEX)自然衰减的主要过程。
The results show that hydrodynamic dispersion and indigenous biodegradation under mixed electron accepter conditions are primary mechanisms for the attenuation of ethanol and BTEX in porous media.
石油是一种疏水混合物例如：烷烃，芳香烃，树脂和沥青。
Petroleum is a complex mixture of non-aqueous and hydrophobic components liken-alkane, aromatics, resins and asphalt.
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