asphalt hardening

例句：

1. 1. The road was severely damaged during the asphalt hardening process.
   在沥青硬化过程中，道路严重受损。
2. 2.Asphalt hardening is a complex chemical reaction that occurs during the curing of asphalt mixtures.
   沥青硬化是一种复杂的化学反应，发生在沥青混合物的固化过程中。
3. 3.During the asphalt hardening process, the temperature and humidity levels must be carefully controlled to prevent damage to the pavement.
   在沥青硬化过程中，温度和湿度水平必须严格控制，以防止对路面造成损害。