gilsonite的音标：gilsonite的英式发音音标为：['gɪlsəˌnaɪt]gilsonite的美式发音音标为：['gɪlsəˌnaɪt]...

The article introduced the category of natural bitumen and the characteristic of gilsonite.介绍了天然沥青的种类与天然岩沥青的特点....

n.黑[硬，天然]沥青，硬沥青...