“硬沥青”怎么读

“硬沥青”的英语可以翻译为：gilsonite，uintahite，uintaite，Gilsonite ...

介绍了一种在石油加工过程中产生的特殊副产物 - 硬沥青.The byproduct of petroleum industry - hard pitch andphysical and chemical properties are introduced.摘要介绍了一种在石油加工过程中产生的特殊副产物 - 硬沥青.The byproduct of petroleum industry - hard pitch is recommende...