The property data of crude oil and its fraction is the basic data in design of petroleum refining technology. In the past these data were obtained by hand calculation or consulting tables and charts.
石油及其馏分的物性数据是石油炼制工艺设计的基础数据，以往常常采用手工计算或查阅有关图表获得。
The property data of crude oil and its fraction is the basic data in design of petroleum refining technology.
阐述了当前国内外石油炼制催化剂器外再生技术的现状。
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