asphaltic base crude

例句：

1. 1.The asphalt base is the foundation of the road surface.
   沥青基是道路表面的基石。
2. 2.Asphalt is a popular material for road construction due to its durability and low cost.
   由于其耐用性和低成本，沥青是道路建设中常用的材料。
3. 3.Crude oil is extracted from underground reservoirs and refined into various products.
   原油从地下储层提取并提炼成各种产品。