concrete check

例句：

1. 1.The engineer conducted a concrete check on the construction site.
   工程师对施工现场进行了混凝土检查。
2. 2. Before starting work, it's important to conduct a concrete check on the materials used.
   在开始工作之前，重要的是要对使用的材料进行混凝土检查。
3. 3. The concrete check revealed several areas of concern for future maintenance.
   混凝土检查揭示了几个需要关注的未来维护问题。