Turbulent transition zone is the main zone of trangportating oil products in pipeline, and its basic friction factor formula is Colebrook formula.是什么意思_Turbulent transition zone is the main zone of trangportating oil products in pipeline, and its basic friction factor formula is Colebrook formula.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句