石油的

Alberta has vast energy resources in the form of oil, coal and natural gas.

艾伯塔省拥有大量的石油、煤和天然气资源。

Oil and natural gas contains a lot of saturated hydrocarbons, but it is difficult to isolate a pure alkane.

石油和天然气中含有大量饱和烃，但很难分离出纯的某一烷烃。

A colorless flammable liquid alkane derived from petroleum and used as a solvent .

一种无色、易燃烧的液体，从石油中提取，用作溶剂。

A flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals.

一种无色易燃的气态烯烃，从石油和天然气中提取，用于制造其他许多化学品。

Methods: from prepation of crude drug as start, study the technology of extract and defat with L9 (3~4) orthogonal test. With EtOH extraction and water sed, alkali washing, EtOAC extraction as main methods of eliminate dopant. Finally with alky AlzO3 chromatographic column, rich and gain anticancer active site. The maximum response was achieved at a 40 min extracting time with 10 times volume 90% EtOH added to the sample for the first time and 30 min for the second time. Adding 10 times water will produce precipitation; Place the precipitation into 6 times petroleum benzin to de-fat at 60℃.

云南红豆杉中抗癌活性物制备工艺研究方法：利用正交设计试验L9(3~4)确定原料药提取工艺为：10倍量90％乙醇提取两次，第一次40分钟，第二次30分钟；醇提液用10倍量水沉；沉淀加6倍量石油醚40℃脱脂；用1mol／L的NaOH溶液碱洗，除去酸性杂质；以碱性氧化铝柱，以环己烷／丙酮为洗脱溶剂，在环己烷-丙酮(6：4)段富集到所需活性部位，洗脱剂用量为3VB。

It's the real alternative to petroleum.

这是真正的可取代石油。

Polymer aluminum chloride and polyacrylamide are used to treat the wastewater produced in Chongqing Gas Field .

在重庆气矿气田水处理中加入了聚合氯化铝和聚丙烯酰胺，其应结果表明，这两种絮凝剂配合使用的效果较好，能达到石油企业废水回注指标(pH值为6～9，SS小于30mg/L，石油类物质少于10mg/L)。

The Company passed American petroleum institute API Spec7-1 product authentication and ISO9001:2000 quality management system certification.

公司通过了美国石油学会API Spec7-1的产品认证和ISO9001：2000质量管理体系认证。

A pipeline design method is discussed and the famous American Petroleum Institute pipeline standard is also introduced.

探讨管系设计方法和介绍著名的美国石油学会管系标准。

The American Petroleum Institute sets minimum for performance standards for lubricants.

美国石油学会设置了润滑油的最低性能标准。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。