asphalt material

例句：

1. 1. The asphalt material is used to coat roads and bridges.
   沥青材料用于覆盖道路和桥梁。
2. 2. The asphalt material was tested for its durability and heat resistance.
   沥青材料被测试了其耐久性和耐热性。
3. 3. The asphalt material was laid down in a thin layer to prevent cracking.
   沥青材料被铺设成一层薄薄的，以防止开裂。