... 剩余价值的转化 conversion of surplus-value 石油的转化过程 oil conversion processes 液态石油的转化 conversion of liquid petroleum ...
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High conversion could be obtained by using the tail oil circulation process and other integrated processes.
采用尾油循环和其它组合工艺，可以得到较高的重渣油加氢转化率。
Hydrocracking is one of the most important heavy oil deep conversion processes and has been widely used in modern refining and petrochemical industry.
加氢裂化是重油深度加工工艺之一，已在现代炼油和石油化学工业得到广泛应用。
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