石油的

The process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的过程；把石油分子分解成更小的分子并提取低沸点的分馏部分的过程。

Whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).

把石油重分子分解成低分子碳氢化合物的''。'过程'。''；把石油分子分解成更小的分子并提取低沸点的分馏部分的''。'过程'。''。

Chinese abstract: The coating is the various branches and sectors of anational economy essential necessary material, widely applies to eachkind of building, each industry product (for example airplane, rocket,orbiting vehicle, automobile, ships, mechanical electron and lightindustry electrical appliances and so on) decoration protection aswell as each kind of steel and iron facility (for example wharf, seapetroleum oil drilling platform, petroleum chemical industryequipment, conduit, power transformer tower and bridge and so on)anticorrosion protection.

请高手帮我把论文摘要翻译成英文的，谢谢了！！中文摘要：涂料是国民经济各部门不可缺少的配套材料，广泛应用于各类建筑物、各种工业制品（如飞机、火箭、人造卫星、汽车、船舶、机械电子和轻工家电等）的装饰保护以及各类钢铁设施（如码头、海洋石油钻井平台、石油化工装备、输送管道、输变电塔和桥梁等）的防腐保护。

On the history, the quick wave motion of price of international market oil often can cause the storm and stress of world economy, going up only century 70 time once because of oil price substantially violent wind rises, caused the big decline of world economy twice.

历史上，国际市场石油价格的急剧波动往往会引发世界经济的大动荡，仅在上世纪70年代就曾经因为石油价格的大幅度飙升，导致了两次世界经济的大衰退。

On the history, the quick wave motion of price of international market oil often can cause the storm and stress of world economy, going up only century 70 time once because of oil price substantially violent wind rises, the big decline that caused world economy twice.

历史上，国际市场石油价格的急剧波动往往会引发世界经济的大动荡，仅在上世纪70年代就曾经因为石油价格的大幅度飙升、导致了两次世界经济的大衰退。

There is also huge potential to expand production: if you include its near-endless supply of treacly "ultra-heavy" oil, Venezuela has the world's biggest reserves.

如果将黏稠的"超重"石油近乎无限的供应包含在内，那么委内瑞拉则拥有全球最大的石油储量，因而扩大生产的潜力巨大。

As the basic production unit and the starting point of oil industry chain, oil field's efficiency affects efficiency of the whole ...

油田作为石油工业的基础生产单位、产业链条的源头，它的效率在很大程度上决定了整个石油工业的效率。

As the basic production unit and the starting point of oil industry chain, oil field's efficiency affects efficiency of the whole industry.

油田作为石油工业的基础生产单位、产业链条的源头，它的效率在很大程度上决定了整个石油工业的效率。

"The idea is to use these polymers to clean in situations where it's inconvenient to apply soap or anywhere you would need to have oil cleaned off easily," said Youngblood, a materials engineer at Purdue University in West Lafayette, Ind. Oil fouling is always a problem.

"这个想法是使用这些聚合物在清洁的情况下它的不方便申请肥皂或任何你需要清洗容易脱落的石油，"杨布拉德说，在普渡大学西，印第安纳州Lafayette石油污染的材料工程师一直是个问题。

Primary extract the active elements from the root,stem and foliage of Artemisia annua L with petroleum ether (30~60℃), petroleum ether (60~90℃), ethanol, acetone and water were carried out in laboratory, then further separation of active elements was detected by column chromatography, and then the separated elements′acaricidal activitie was measured against Tetranychus cinnabarinus.

采用石油醚（30~60℃）、石油醚（60~90℃）、乙醇、丙酮和水等5种溶剂对采自6月份的黄花蒿的根、茎、叶分别进行活性成分的初步提取，然后用柱层析进行分离检查，并进一步用分离得到的组份对朱砂叶螨进行生物测定。

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。