应用拉曼光谱法测定了芳烃物料的馏程。
The distillation range of aromatic materials was determined by Raman spectroscopic method.
这些产品具有不同的馏程范围和蒸发速度。
They are available in a variety of distillation ranges and evaporation rates.
我们可提供三种馏程范围、具有不同挥发性的产品。
They are available in three boiling ranges with varying volatility.
其REE丰度逐渐增高，轻、重稀土分馏程度表现为愈趋显著的总体演化趋势。
Their REE abundance increases progressively and their light and heavy REE fractionations also have a general evolutionary trend of becoming more and more marked.
临氢降凝原料，不应是全馏程柴油，而应是柴油中馏程较重、决定凝点的组分；
The feed should not be all distillation range diesel but part of it which is heavier, deciding the freezing point of diesel.
采用极其纯净的酯类油或馏程极窄的合成烃为基础油，赋予成品油等高的闪点，使用更安全。
The extremely pure ester oil or extremely narrow distillation range of base oil, synthetic hydrocarbon oil to the same height as flash point, using more safe.
研究了焦化苯类产品蒸馏试验的气压补正标准方法，对焦化苯类产品的馏程范围进行了定义。
The standard method with atmospheric pressure correction for distillation test of coking benzene products is studied. The distillation range of coking benzene products is defined.
考察了乙醇体积分数对乙醇汽油馏程及饱和蒸汽压的影响，对乙醇汽油的蒸发性进行了研究。
In order to study the evaporation of ethanol-gasoline, experimental investigation had been carried out on distillation range and saturated steam pressure with different ethanol content.
馏程是石油产品一种重要的质量指标，它的测量在石油产品的炼制和使用过程中都具有十分重要的意义。
The distillation range is a kind of chief quality index for petroleum products. Measurement of distillation range has very important meaning in process of refinery and employ for petroleum products.
影响焦化汽油调合生产90 号无铅汽油质量的主要因素是焦化汽油的馏程、辛烷值、实际胶质和硫醇硫的含量。
The major influencing factors of blending coker naphtha for 90 RON unleaded gasoline are its distillation range, octane number, existent gum and mercaptan content.
综述了凝胶渗透色谱法在重质油测定中的应用，并采用两支高效聚合物凝胶色谱柱代替传统的硅胶柱建立了分子量和馏程的评价系统。
The establishment of the gel permeation chromatography method for the the determination of molecular weight of high boiling petroleum was described in detail .
就碳酸二甲酯对汽油的调合辛烷值、氧含量、热值、蒸汽压、馏程、凝固点、溶水性等性质的影响进行了研究。实验表明，DMC作为汽油添加剂具有良好的前景。
Well-tried function of DMC as an additive on gasoline, covering its octane number, oxygen content, calorific value, vapor pressure, distillation range, freezing point, solubility in water etc.
就碳酸二甲酯对汽油的调合辛烷值、氧含量、热值、蒸汽压、馏程、凝固点、溶水性等性质的影响进行了研究。实验表明，DMC作为汽油添加剂具有良好的前景。
Well-tried function of DMC as an additive on gasoline, covering its octane number, oxygen content, calorific value, vapor pressure, distillation range, freezing point, solubility in water etc.
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