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- The utilization and the prepartion methods of 2,6-DMN are introduced.The separation and purification processes of 2,6-DMN from coal and petroleum tar are reviewed. 本文介绍了2，6-二甲基萘的用途和制备方法；综述了从煤焦油和石油中分离提纯2，6-二甲基萘工艺。
- Separation of 2,6-DMN from Coal and Petroleum Tar 从煤焦油和石油焦油中分离2,6-二甲基萘
- Peter had his head in a tar barrel sure enough. 不出所料，彼得陷入了困境。
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- Tar is much used in making modern roads. 修建现代公路多用焦油沥青。
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- A trademark used for a brand of petroleum jelly. 凡士林用来作为石油脂的商标
- Taiwan seems to contain no petroleum. 台湾恐怕没有蕴藏石油吧！
- This land is rich with petroleum. 这片土地盛产石油。
- The chemistry of petroleum and its derivatives. 石油化学石油及其复合物的化学
- Petroleum can be used to produce various chemical products. 石油可用于生产多种化学产品。
- An organic derivative, such as coal or petroleum. 有机衍生物一种有机衍生物，如煤或石油
- They will report on the experiments with coal tar. 他们将汇报煤焦油的试验情况。
- This kind of tobacco has a high tar content. 这种香烟焦油含量很高。
- petroleum tar 石油柏油,石油残渣油,石油焦油
- Lignite oil is creosote derived from lignite tar. 褐煤油是从褐煤中得来的防腐油。
- Crude oil can be refined into various petroleum products. 原油可炼制成各种石油产品。
- A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch. 从石油沥青和煤沥青中制取沥青中间相物质。
- White on the outside, black as tar on the inside. 外表皮肤是白,可骨子里却沥青般的黑。
- Shipbuilders caulk wooden boats with oakum and tar. 造船工匠用麻丝和沥青填塞木船缝隙，使之不渗水。
