英语词汇petroleum fraction怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	petroleum fraction
释义	petroleum n — 油 n • 石油 n • 天然气 n • 石化 n fraction n — 分 n • 零 n • 分毫 n
随便看	safety module safety monitor safety monitoring safety monitoring system safety must always safety must be safety must be ensured safety net safety net for the poor safety net function safety net interventions safety net in the event safety net measures safety net protection safety net system safety netting safety network Safety newsletter safety norms safety notes safety notice safety notification safety number safety objective safety objects

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

petroleum n —