查询词典 petroleum

"Rare in nature, olefins are obtained by the cracking of petroleum fractions at high temperatures. The simplest ones (ethylene, propylene, butylene, butadiene, and isoprene) are the basis of the petrochemicals industry."

烯烃在自然界很稀少，但在石油裂解成汽油过程中可大量生成，低级的单烯烃已成为庞大的石油化学工业的基础。

By the end of 1962, we had met the demand for petroleum.

到1962年底，我们已满足了对石油的需要。

British gas company fell 7.39 percent, Cairn Energy and Tullow Oil of UK decline is more than 5%, British Petroleum and Shell also have a certain degree of decline.

英国燃气公司下滑7.39％，英国凯恩能源和英国塔洛石油的跌幅也在5％以上，英国石油公司和壳牌也有一定程度的跌幅。

Geographically, the study includes a broad overview of all major regional markets as well as a breakdown all types of wax including mineral waxes(petroleum waxes, montan, ozocerite),synthetic waxes(Fischer-Tropsch, Polyethylene,α-olefin, polypropylene), animal waxes and vegetable waxes(soy, palm, carnauba, candelilla, jojoba, etc).

公司对未来全球蜡行业发展较广泛的研究后做出的总结。

The invention provides a steel for straight-seam resistance welding petroleum cannula and a manufacturing method for the steel.

本发明提供一种直缝电阻焊石油套管用钢及其制造方法。

Not only has the emergence of those new oil giants changed the pattern of the petroleum industry, but also lifted the degree of the capital convergence and market monopoly in a global sense.

新石油巨头的出现不仅改变了世界石油工业的格局，同时也将世界石油业的资本集中和市场垄断程度进一步提高，对发展中国家的石油产业及其石油公司的经营构成更大威胁。

Our professional production equipment and tooling blocks, and products are mainly used in open barrels, paint barrels of oil barrels, Youqietong, mobile barrels Series: four liters, 5 liters, 10 liters, 12 liters, 18 L, 20 litres of sealing clamp, the drums of 200 litres (53 gallons) closures sealing clamp, Capper, as well as external sealing clamp, widely used in the cooperage, Cans, lubricants, paints, chemicals, petroleum, Grain, cotton industry sectors essential supplies.

本厂专业生产封盖设备及模具，产品主要用于开口桶、涂料桶、润滑油桶、油漆桶、手提桶系列：4升、5升、10升、12升、18升、20升、的封口钳，大铁桶200升(53加仑)密封盖封口钳，封盖机、以及外力封口钳，广泛用于制桶、制罐、润滑油、涂料、化工、石油、粮油、棉业等行业的必备用品。

Coal gasification is a partial combustion of carbonaceous materials, such as coal and petroleum coke.

煤气化技术是对含炭物质如煤或石油焦进行部分燃烧。

Much of the petroleum we use today began some 200 million years ago in the Carboniferous Period.

我们今天使用的很多石油都起至200万年前的石炭纪。

The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.

类胡萝卜素和石油醚提取物含量在陈化三个月时降低，之后上升。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。