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- Pay attention to fire prevention when recirculating and eluting with petroleum benzin. 用石油醚回流洗脱时应注意防火。
- Coenzyme Q10 is obtained through saponification, extraction with petroleum benzine, chromatography with silica gel and crystallization with ethanol. 采用醇碱皂化法，经石油醚萃取、硅胶柱层析，无水乙醇结晶、重结晶得到辅酶Q10。
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- petroleum benzin 石油醚,石油挥发油
- 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。
- purified petroleum benzin 纯苯
- 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
- Crude oil can be refined into various petroleum products. 原油可炼制成各种石油产品。
- Das Benzin in dem Benzintank reicht fuer tausend Kilometer aus. 汽车油箱里的汽油足够跑一千公里的路程。
- The petroleum price will be unfrozen next month. 对石油价格的限制将于下月取消。
- Benzin wird 16 Prozent teurer, Diesel gar18 Prozent. 汽油贵了16%25，柴油整整18%25。
- The apparatus used in the cracking of petroleum. 裂化设备用于裂化石油的装置
- The petroleum hydrocarbon is called hexane. 己烷是一种石油碳氢化合物。
- USES: As petroleum and colouring agent for glass. 用途：用作玻璃的脱色剂和着色剂。
- Place a dab of petroleum jelly on the bulb. 涂少量的凡士林在温度计上。
