By contrasting with many retrieving methods of normal heptane in petroleum chemistry experiment this paper showed that alumina is a good sorbent, both simple and convenience.

对石油化学实验中所使用正庚烷溶剂的回收方法进行了对比，实验表明，采用氧化铝作为吸附剂效果良好，方法简便易行。

This review deals with various polymeric superacid catalysts. Their classifications, preparations, structures and applications in petroleum chemistry and organic synthesis are discussed.

本文综述了各种有机聚合物超强酸体系的分类、合成、结构、以及它们在石油化工和有机合成中的催化作用。

Bear chemistry: bear detergent and weak melting agent, such as petroleum melting agent oil.

耐化学性：耐清洁剂及弱溶剂，如石油溶剂油。

The state university also has faculties of chemistry, biochemistry, pharmacy, chemical engineering, petroleum and chemical technology.

州立大学也有化学系、生物化学系、制药系、化工系、石油系和化工技术系。

The application GC-MS Technology in petroleum and chemical industry, medicine, food analysis, biological chemistry, environmental science and earth chemistry, and so on was reviewed.

本文对气—质联用技术在石油化工、 医药、食品、生化、环境、 地球化学等方面的应用作了综述性报道。

The application of chemistry to the study of rocks (geochemistry) has many USES in petroleum geology.

化学应用到石油地质的岩石研究(地球化学)中有许多作用。

Hydrogen is widely used in such industries of petroleum, chemistry, energy source and military industries, etc.

氢气广泛应用于石油、化工、能源、军工等行业。

The properties of inner liner stainless steel compound pipes and their application in petroleum, chemistry, hygiene and food industry are introduced.

概述了内衬不锈钢复合管的特性及其在石油、 化工、卫生、食品加工等领域的应用。

Hydrogen is widely used to industries of petroleum, chemistry, metallurgy and electronics, etc. Hydrogen generation system by water electrolysis is one of the important hydrogen production methods.

氢气广泛用于石油、化工、冶金、电子等行业，水电解制氢是重要的制氢方法之一。

Our Service covers a wide range of industry, including petroleum, chemistry, power, electronics, metallurgy, water treatment, aerospace, nuclear power, etc.

多年来，我们提供的产品及自动化工程服务涵盖了石油、化工、电力、电子、冶金、食品、制药、水处理、航空、航天、核电等领域。

And now the products have been used in many trades, such as petroleum, chemistry, electricity power, light textile industry, environment protection, foodstuff, construction and water disposal.

现已广泛用于石油、化工、电力、冶金、轻纺、环保、食品、建筑和水处理等行业。

We mainly serve petroleum, chemistry, pharmacy, research and education and so on industries.

公司主要服务于石油、化工、制药、科研、教育等行业。

The products of Gelandi were extensively used in the areas of water conservancy, construction, fire control, electric power, environment protection, petroleum, chemistry and medicine etc.

格兰迪阀门产品广泛应用于水利、筑、防、力、保、油、工、药等各个领域。

The product widely use in several fields, such as chemistry industry, pharmacy, petroleum, galvanization, environment protection, printing and dyeing, food, heating and so on.

本公司产品广泛用于化工、制药、石油、电镀、环保、印染、食品、暖通等行业并得到一致好评。

The two-phase flow systems are very common in many industry fields, such as petroleum, chemistry engineering, metallurgy, energy power, pharmacy and so on.

在石油、化工、冶金、能源动力、制药等工业过程中，存在着大量的两相流动现象。

Petroleum primarily consists of reduced hydrocarbons, and their selective oxidation chemistry remains one of the foremost challenges in the chemical industry.

石油主要由还原型的碳氢化合物组成，因此它们的选择性氧化反应研究就成为化学工业中最重要的挑战性课题之一。