petroleum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 properties affect the price and end-use of the crude or petroleum product.

这些特性影响原油或石油产品的价格及其最终用途.

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

And the company has now signed a deal with petroleum development Oman for 7 megawatts of plant-a 16000-square-metre greenhouse providing some 57 billion BTU of steam a year.

现在公司正在为petroleum development oman设计一个年产7百万瓦特的工厂&一个16000平方米温室，每年生产大概570亿英热单位的蒸气。

Application of PLC Technology in Petroleum Casing Product Line

PLC技术在石油套管生产线上的应用

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

Argillaceous Hydrocarbon Reservoir Distribution Patterns and Petroleum Prospecting in Bohai Gulf Basin

渤海湾盆地泥质岩油气藏分布特征及勘探

Hydrotreating is an effective method of removing sulfur, nitrogen and arene from petroleum products.

催化加氢精制是降低石油产品中硫、氮及芳烃含量的有效方法。

A modified asphalt adhesion agent was made using petroleum asphalt as base materialbutyl rubber as modifierrosin resin as tackifier and mica powder as filler.

以石油沥青为基料，采用丁基橡胶为改性剂，改性松香树脂为增粘剂，云母粉为填料，制成一种改性沥青胶粘剂。

Acetylene is a fuel gas in application to industrial gas widely. But acetylene production has higher energy consumption and calcium carbide is an important raw material of synthetic chemicals, so liquefied petroleum gas is a good substitute for acetylene when welding.

乙炔是工业燃气中应用最广的一种可燃气体，但生产乙炔能耗高，电石又是重要的合成化学原料，因此，用液化石油气代替乙炔作为焊割气，是一条节能的重要途径。

The characteristics and design methods of structure strengthening with external prestressing tendons are discussed on the basis of the introduction of a project at the accessory building for foreign students in the Petroleum University.

通过对石油大学留学生楼附属用房体外预应力加固工程的介绍，探讨了体外预应力加固方案的设计思路与特点。

The absorption and desorption of dissolved petroleum hydrocarbons ( DPHs) in seawater are studied using sands from a bathing beach as absorbent material and 0# diesel as absorbate.

采用海滨浴场的沙为吸附剂，0号柴油为吸附质，研究了溶解性石油烃（DPHs）在砂上的吸附及解吸规律。

The anchoring agent is petroleum resin or abietic resin.

所述的增粘剂为石油树脂或松香树脂。

Compared to fossil fuels, biodiesel is more environmentally-friendly and sustainable, so it could be a viable alternative to replace conventional petroleum.

比较传统的化石燃料，生物燃料更为环保，且可再生，能完全取代传统的燃料。

The creep of salt rock is very harmful in petroleum drilling.

盐岩蠕变对石油钻井危害性极大.

Application of PTFE Stuffing to Petroleum Gas Booster

填充PTFE填料在石油气压缩机上的应用