Definition

Examples

• 这条铁路的路基是用碎石和沙子铺成的。
  Zhè tiáo tiělù de lù jī shì yòng suìshí hé shāzi pū chéng de.
  The roadbed of this railway is made of gravel and sand.
• 施工队正在加固路基，防止路面塌陷。
  Shīgōng duì zhèngzài jiāgù lù jī, fángzhǐ lùmiàn tāxiàn.
  The construction team is reinforcing the subgrade to prevent road collapse.
• 高速公路的路基必须达到一定的压实度。
  Gāosù gōnglù de lù jī bìxū dádào yídìng de yāshídù.
  The subgrade of the expressway must reach a certain compaction level.