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- In order to offer more reliable basis for project practice of pipelines, it is very important to study the assessment of petroleum pitch coating failure. 为了对管道检测的工程实践提供更为可靠的依据，管道覆盖层保护失效的评价研究十分重要。
- In order to offer more reliable basis for project practice of pipelines,it is very important to study the assessment of petroleum pitch coating failure. 为了对管道检测的工程实践提供更为可靠的依据,管道覆盖层保护失效的评价研究十分重要。
- The failure forms, causes and methods to appraise petroleum pitch coatings are summarized in the present paper. 文章概述了沥青外覆盖层保护失效的形式、理与评价方法。
- Development of the Petroleum Pitch Coating Failure and Its Assessment Methods 埋地管道涂层沥青失效及评定方法研究概述
- Investigated and Analyze to the Corrosion and Failure of Petroleum Pitch Coating 埋地钢制管道沥青涂层腐蚀调查与失效分析
- Petroleum pitch coating 沥青外覆盖层
- A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch. 从石油沥青和煤沥青中制取沥青中间相物质。
- This article mainly introduces the preparation of petroleum pitch coal additive agent and the slurrying ability of coal on adding petroleum pitch. 主要介绍了石油沥青水煤浆添加剂的制备和在煤中掺入石油沥青的制浆性能。
- A pitch mesophase can be prepared from petroleum pitch andcoal tar pitch. A new-type carbon material with self-sintering function has been made from the mesophase. 从石油沥青和煤沥青中制取沥青中间相物质。可从这种原料中制备出具有自烧结功能的新型碳素材料。
- Abstract: This article mainly introduces the preparation of petroleum pitch coal additive agent and the slurrying ability of coal on adding petroleum pitch. 文摘:主要介绍了石油沥青水煤浆添加剂的制备和在煤中掺入石油沥青的制浆性能。
- Glue of bitumen of cold bonding dissolvent (cold bitumen glue) be by petroleum pitch, inserts, dissolvent (benzine, kerosene) the bitumen adhesive that tone makes up. 冷粘溶剂沥青胶（冷沥青胶）是由石油沥青、填充料、溶剂（汽油、煤油等）调配制成的沥青胶粘剂。
- Coal-tar pitch-based carbon microspheres were prepared by adding petroleum pitch using emulsifying pitch-toluene colloidal solution in polyvinyl alcohol (PVA) glycerol solution. 摘要通过在煤焦油沥青中添加石油沥青获得沥青甲苯胶体溶液，然后与聚乙烯醇(PVA)的甘油溶液乳化，制备了煤沥青基炭微球。
- It was found that petroleum pitch addition could improve the sphericity of pitch spheres by stabilizing the surfactant orientation on the interface between pitch molecules and dispersant. 研究发现，添加石油沥青可以促进乳化液中沥青分子与分散剂界面上表面活性剂分子的取向稳定性，从而明显改善沥青微球的球形度。
- Carbon fibers from petroleum pitch 石油沥青基炭纤维的制备
- She has keyed the piano up to concert pitch. 她已经把钢琴的音调升到音乐会的音高标准。
- The runner went to second base on a wild pitch. 一记瞎设让跑垒员跑上了第二垒。
- How can you get rid of this oxide coating? 你们该怎样除去这些氧化皮？
- Indonesia is abundant in petroleum deposits. 印尼的石油蕴藏量丰富。
- The coach built the team up to a fighting pitch. 教练使全队振作起来，准备一搏。
- The pitcher tends to pitch the ball too high. 这个投球手常把球掷得过高。
