烃类混合物是多组分烃类混合物的密度。
苯胺点用来表现纯净的碳氢化合物的特性并用于显示烃类混合物里的芳烃含量。
Aniline point is used to characterize pure hydrocarbons and to indicate the aromatic content of hydrocarbon mixtures.
结论多环芳烃类混合物具有较强的遗传毒性，可使职业工人在早期接触阶段出现P 2 1的高表达。
Conclusion Polycyclic aromatic hydrocarbons (PAHs) has a strong genetic toxic effect and can cause P21 level increase in earlier stage among occupational workers.
研究表明：烃类气体混合物在储层孔隙介质中的吸附量随温度的升高而减少，随压力的升高而增大；
The study shows the adsorption amount of gas hydrocarbon mixture on the porous media sur face of reservoirs decreases as temperature increases, and in creases as pressure increases.
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