Calibre provides usable defaults for its conversionprocesses, but automatic format conversion is rarely perfect.
Calibre提供了转换过程可用的默认设置，但是自动格式转换很少是完美的。
2
Hydrocracking is one of the most important heavy oil deep conversionprocesses 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。
3
It also describes the economy of delayed coking process and gives comparison with other main residue conversionprocesses (RFCC and residue hydroprocessing processes).