semi-hard rubber

例句：

1. 1. This semi-hard rubber is used in the productionof bicycle tires.
   这种半硬橡胶用于生产自行车轮胎。
2. 2. The car's bumper is made from semi-hard rubber.
   汽车的保险杠是用半硬橡胶制成的。
3. 3. The construction workers used a semi-hard rubber to repair the damaged road surface.
   建筑工人用半硬橡胶修复了损坏的道路表面。