轻石油馏分，如石脑油是合乎逻辑的选择。
Light petroleum distillate, generally known AS naphtha, wAS the logical choice.
石油产品。中间馏分产品中芳香烃类的测定。用折射指数检测的高性能液相色谱法。
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection.
最广泛使用的介质可能一般采用瓦斯油沸程内的高沸点石油馏分。
Probably the most widely used medium is a high-boiling petroleum fraction, usually in the gas-oil range.
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