石油的例句大全

In the meanwhile, the effects of varied acids for protecting third carbonyl group were investigated. Through the trial and error, the mixture of anhydrous alcohol/ petroleum benzine is the good solvent of target molecule recrystal.

考察了酸性对保护3位羰基的影响，确定了无水乙醇/石油醚是目标分子重结晶的最佳溶剂体系。

Method s: Soxhlet extractor was previously applied to grape seeds for the remover of oils with petroleum benzine.

方法：对新疆葡萄酒厂废渣中葡萄籽用石油醚脱脂，脱脂后的葡萄籽用乙醇提取。

Compared with the traditional process, yield of diosgenin was raised by 25.1 percent, the consumption of hydrochloric acid reduced by 90%, and the consumption of petroleum benzine decreased by 60%, and the production was much purer.

该工艺同传统提取工艺相比：皂素收率的提高率为25.1%；产品纯度高；盐酸用量降低90%以上，石油醚用量降低了60%以上。

The draft law requires an open bidding process and would establish which foreign countries are eligible to work in Iraq.

石油法草案要求公开招标，并确定哪些家外国公司有资格在伊拉克营运。

Determination of asphaltene contents in petroleum bitumen using spectrophotometer

分光光度计法测定石油沥青中沥青质含量

Adhesivity of Petroleum Bitumen to Metal

石油沥青与金属的粘结性能

Geochemical features of the rare earth elements in petroleum bitumen from the Ordos Basin

鄂尔多斯盆地石油氯仿沥青稀土元素地球化学特征

The discussion and countermeasures of petroleum reserves in China

中国石油储备体系探讨及对策

Described here in the paper are the processing technology of high-strength, large-sized casing coupling, and the methods used to measure coupling deformation;

简介了高强度、大口径石油套管接箍机械加工工艺，以及测量接箍变形的方法；

Reducing coupling deformation during machining of high-strength, large-sized casing coupling

减小（高强度、大口径）石油套管接箍加工变形

Tianjin Pipe Corporation Tube Processing Factory transformed the original plain-end tube production line into plain-end/ casing tube line in order to produce the oil casing tube with high additional value.

天津钢管公司管加工厂为了生产高附加值无缝石油套管，将原来一条光管生产线改造为光/套管线。

Through the comprehensive technical level analysis of China plate rolling, pipe making and pipe processing, it points out the possibility and necessity of establishment of ERW casing production line in China.

通过对我国近年来卷板轧制、管材制造及管加工等技术水平综合分析，认为，在我国建造ERW石油套管生产线是必要的、可行的。

The Design Alternative of Automation Reform for Oil Casing Production Line Based on PLC

基于PLC的石油套管生产线自动化改造方案设计

Application of PLC Technology in Petroleum Casing Product Line

PLC技术在石油套管生产线上的应用

Prospect of Application of Numerical Simulation Technology to the Casing Pipe Manufacture

数值仿真技术在石油套管制造中应用的展望

The casing pipe against the water is important equipment in oil engineering.

隔水套管是石油工程中的重要设备。

In essence, the oil-fuelled hubris and breast-beating of Mr Putin's second presidential term is out.

总之，俄罗斯在普京第二个总统任期内由石油助长的傲慢与慷慨激昂已成为过去。

The option method for evaluating the value of petroleum reserves

评估石油储量价值的期权方法

Study on the effective exploitation of low-grade petroleum reserves

低品位石油储量有效开发利用策略

Because of its accuracy in outlining the Earth's subsurface, the seismic-reflection method remains the most important tool in the search for petroleum reserves.

文章首句指出：“由于‘地震反射法’（sr）在勾划地球的地下层面这方面的准确性，该方法一直是探寻石油储备的最重要的工具。”这是一个判断句，为结论。