炼制过程 meaning in Chinese
refining process
Examples
- In fact , unsaturated hydrocarbons , which are not usually present in virgin petroleum , are nearly always manufactured as intermediates during the various refining sequences
实际上，原油中一般不存在非饱和烃，几乎所有的非饱和烃都是在各种炼制过程中作为中间产品而产生的。