对车用液化石油气气路系统中堵塞物的研究结果表明，蒸发器上的残留物主要是酯类、醚类、正构烷烃、单质硫和硫化铜粉末。
The formation of residues in the auto-LPG fuel system is one of the main obstacles in the application of LPG as vehicular fuel.
研制了乳化沥青蒸馏器，用蒸馏法和蒸发法分别提取乳化沥青残留物，对残留物性能进行了试验比较。
An emulsified asphalt distiller had been worked out by authors of this paper. Performances of the residues obtained through both distilling and evaporating were compared.
研制了乳化沥青蒸馏器，用蒸馏法和蒸发法分别提取乳化沥青残留物，对残留物性能进行了试验比较。
An emulsified asphalt distiller had been worked out by authors of this paper. Performances of the residues obtained through both distilling and evaporating were compared.
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