heavy base layer

例句：

1. 1. The construction of thenew building required a heavy base layer tosupport its weight.
   新建筑的建设需要重型基础层来支撑其重量。
2. 2. The heavybase layer is essential for the stability ofthe structure.
   重型基础层对于结构的稳定性至关重要。
3. 3. The heavy base layer is made upof concrete and asphalt, providingexcellent durability and resistance to wear and tear.
   重型基础层由混凝土和沥青组成，提供了极好的耐久性和抗磨损能力。