concrete mixing and transporting car

例句：

1. 1.The concrete mixing and transporting car is essential for the construction project.
   混凝土搅拌和运输车对于建筑项目来说是必不可少的。
2. 2. The concrete mixing and transporting car was used to transport the materials from the factory to the construction site.
   混凝土搅拌和运输车被用来将材料从工厂运送到施工现场。
3. 3. The concrete mixing and transporting car was responsible for ensuring the safety of the workers during the construction process.
   混凝土搅拌和运输车负责确保施工过程中工人的安全。