First of all, crude oil was cutting into several pseudo components which act as input of primary tower according to its true boiling points data.

首先利用原油实沸点蒸馏数据将原油切割为一定数目的虚拟组分，并以此作为常减压装置初馏塔的输入。

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The ASTM data was treated to produce the TBP data and the mean average boiling point by explicit correlations and then the pseudo-components were cut by using the integral method.

该方法用显式关联直接将恩氏蒸馏数据转换成实沸点蒸馏数据和计算出馏分的中平均沸点，然后用积分法切割假组分。

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