石油的

"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 petrochemical s 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。

"Rare in nature, olefins are obtained by the cracking of petroleum fraction s 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。

"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。

On this industry catenary, limited company of astral science and technology in home as the earliest production cheers the enterprise of machine, changing terminal to sell course of study to offer for Chinese oil stone in recent years cheer equipment and relevant service respect, with its original technical dominant position, service dominant position reachs advantage of credit, brand, won terminal of Chinese oil petrifaction to sell the general self-identity of the enterprise, its cheer machine product home market to have rate year after year to increase by degrees, already amounted to 40 ％ left and right sides at present.

在这条产业链上，正星科技有限公司作为一家在国内最早生产加油机的企业，近年来在为中国石油石化终端销售业提供加油设备及相关服务方面，以其独到的技术优势、服务优势及信誉、品牌优势，赢得了中国石油石化终端销售企业的普遍认同，其加油机产品国内市场占有率逐年递增，目前已达 40％左右。

ConocoPhillips reported a $31.8 billion net loss for the fourth quarter, mostly related to charges it took on writing down exploration and production assets it bought in 2006 and on its investment in Russia's Lukoil (Conoco's adjusted earnings were $1.9 billion).

康菲石油公司公布去年第四季度净亏损318亿美元，亏损主要源于2006年购入的勘探和生产资产的减值开支以及对俄罗斯石油公司Lukoil的投资减值开支。

With the development of the industry, the petroleum resource become scare and costliness, so all of the countries in the world begin to strengthen their oil storage tactics, which embody the appearance of bigger storage tanks and more storage manners.

随着工业的发展，世界石油资源开始面临短缺，油价高位振荡，世界各国都在加强石油储备战略，主要表现为储罐容量的增大，多种储存方式的出现，所以储罐安定性也日益显得重要起来。

The oil level should be maintained between the uooer and lower mark lines of oil dipstick inside crankcase.

石油水平应维持之间的uooer和更低的标志线内的石油试纸曲轴箱。

Then,from the process design,layout,fire-prevention and fire-extinguishment of oil storage tanks,the types,materials and embalmment technology,which were commonly adopted by oil storage tanks,were analyzed.

在此基础上，从石油储罐工艺设计、布局、防火和灭火等角度出发，分析大型石油储罐常用的类型、材料和防腐处理技术；研究储罐的布置间距；总结大型储罐消防设计中采用的防、灭火技术措施。

Then, from the process design, layout, fire-prevention and fire-extinguishment of oil storage tanks, the types, materials and embalmment technology, which were commonly adopted by oil storage tanks, were analyzed. Meanwhile, the space between tanks was also studied, and fire-fighting measures adopted in the design of large oil storage tanks were summarized.

在此基础上，从石油储罐工艺设计、布局、防火和灭火等角度出发，分析大型石油储罐常用的类型、材料和防腐处理技术；研究储罐的布置间距；总结大型储罐消防设计中采用的防、灭火技术措施。

Ethylene in the field of petrochemical principal position, the petrochemical industry is the most important one of the representatives.

乙烯在石油化工领域占有主要的地位，是石油化工的最重要的代表之一。在

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。