waxy bitumen

例句：

1. 1. The oil was extracted from the waxy bitumen in the shale.
   这种油是从页岩中的蜡状沥青中提取出来的。
2. 2. Waxy bitumen is a valuable resource for road construction.
   蜡状沥青是道路建设的重要资源。
3. 3.The production of waxy bitumen has become a major industry in some countries.
   某些国家蜡状沥青的生产已成为一个主要产业。