intermediate duty fireclay brick

例句：

1. 1.The engineers were required to inspect the intermediate duty fireclay bricks for any defects.
   工程师们被要求检查中间责任耐火砖是否有任何缺陷。
2. 2. The construction company was fined for using substandard intermediate duty fireclay bricks in their projects.
   建筑公司因在其项目中使用劣质的中间责任耐火砖而被罚款。
3. 3.The manufacturer of these intermediate duty fireclay bricks has been accused of violating safety regulations.
   这些中间责任耐火砖的制造商被指控违反了安全规定。