The evaluation of the hydro-upgraded HVI150 and HVI500 base oils showed that the combined process could produce lube base oils met the HVI Standard.是什么意思_The evaluation of the hydro-upgraded HVI150 and HVI500 base oils showed that the combined process could produce lube base oils met the HVI Standard.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句