Consumers are still driving and using petrol and the light crude oils that produce a higher proportion of petrol are not in abundant supply.
消费者仍在驾车并使用汽油，而目前汽油的主要原料轻质油供应却不充裕。
Particle characteristics of model emulsion of vacuum residua fractions from Iranian light and Daqing crude oils were studied by using dynamic light scattering method.
采用动态光散射法研究了伊朗轻质减压渣油和大庆减压渣油模拟乳状液的粒度特征。
With the ph increase or addition of salt in aqueous phase, both the initial diameters of model emulsion particles of vacuum residua fractions from Iranian light and Daqing crude oils increased.
随着水相中碱或盐的加入，伊朗轻质减压渣油和大庆减压渣油模拟乳状液的初始粒径均增大。
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