| 1. | Test method for shear viscosity of coal - tar and petroleum pitches
煤焦油和石油沥青剪切粘度测试方法 |
| 2. | Standard test method for shear viscosity of coal - tar and petroleum pitches
煤焦油和石油硬沥青剪切粘度的试验方法 |
| 3. | Petroleum pitch coke
石油沥青焦炭 |
| 4. | 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、机理与评价方法。 |
| 5. | 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。 |
| 6. | 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。 |
