The di solvent process for lube oil refining has been researched by taking furfural as the main solvent and light hydrocarbon as the second solvent.是什么意思_The di solvent process for lube oil refining has been researched by taking furfural as the main solvent and light hydrocarbon as the second solvent.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句