您要查找的是不是：
- Study of Urinary Thioether Excretion in Workers Exposed to Petroleum Vapour 石油油气接触工人尿硫醚排出量的研究
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- A cloud is a mass of vapour in the sky. 云是天空中的水汽团。
- Water can be changed into vapour when heated. 水被加热时，可以变成水蒸汽。
- 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。
- petroleum vapour 石油蒸气
- 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
- It can change water into vapour. 它能把水变成蒸汽。
- The hot vapour spouted from a rusted pipe. 热蒸汽从一个生了锈的管子里喷了出来。
- Then a brown vapour is given off. 这时会放出一种棕色的气体。
- Crude oil can be refined into various petroleum products. 原油可炼制成各种石油产品。
- He sniffed the vapour up (through his nose). 他（用鼻子）吸入蒸气.
- Petrol forms vapour above a certain temperature. 高于一定的温度汽油就形成蒸气。
- When heated,water change into vapour. 给水加热时，它会变成蒸气。
