The technology of coal transform oil includes two chief types: direct coal liquefaction and indirect coal liquefaction.
煤制油技术主要有煤炭直接液化和煤炭间接液化两类。
The status and development of technology in coal water slurry, gasification, direct and indirect liquefaction of coal in domestic and international scope were introduced.
介绍了水煤浆技术、煤气化和间接液化技术以及煤炭直接液化技术的国内外现状和发展趋势。
The direct and indirect liquefaction technology can be used usually for petroleum production from coal. Its development tendency and industrial situation were discussed.
煤制油通常有直接液化和间接液化，论述了煤的液化合成液体燃料的开发趋势和工业化状况。
The direct and indirect liquefaction technology can be used usually for petroleum production from coal. Its development tendency and industrial situation were discussed.
煤制油通常有直接液化和间接液化，论述了煤的液化合成液体燃料的开发趋势和工业化状况。
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