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- In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene. 石脑油馏份与一个热表面接角，就裂解而得到乙烯和丙烯。
- In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene 石脑油馏份与一个热表面接角，就裂解而得到乙烯和丙烯。
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- 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。
- Light petroleum distillate, generally known as naphtha, was the logical choice. 轻石油馏分，如石脑油是合乎逻辑的选择。
- 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。
- naphtha petroleum 石油精
- 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
- Naphtha, petroleum, light steam-cracked arom., piperylene conc., polymd. 名称 聚合石脑油与轻蒸汽裂化芳烃和间戊二烯的聚合物;
- Mix pure alcohol and naphtha in a ratio of 3:7. 可以把纯酒精和挥发油以三比七的比例混合.
- Crude oil can be refined into various petroleum products. 原油可炼制成各种石油产品。
- The petroleum price will be unfrozen next month. 对石油价格的限制将于下月取消。
- 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。
- Objective:To extract and determine naphtha in Eupatorium fortune. 目的:从佩兰中提取挥发油,并测定其含量。
- USES: As petroleum and colouring agent for glass. 用途：用作玻璃的脱色剂和着色剂。
