Structures of a few heavy ends from domestic etudes and some of thefeedstocks for needle coke manufacture and their intermediate are given.
测定了几种国产原油中重油的结构，并对几个针状焦原料及其中间产物的结构进行了测定，为其原料选择提供了基础数据。
Structures of a few heavy ends from domestic etudes and some of thefeedstocks for needle coke manufacture and their intermediate are given.
测定了几种国产原油中重油的结构，并对几个针状焦原料及其中间产物的结构进行了测定，为其原料选择提供了基础数据。
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