tubular plate

例句：

1. 1. The engineer designed a new tangular plate for the machine.
   工程师为机器设计了一种新型的管状板。
2. 2.The construction workers were installing the new tangular plates on the roof.
   建筑工人正在屋顶上安装新的管状板。
3. 3.The manufacturer is testing the new tangular plates to ensure they meet safety standards.
   制造商正在测试新的管状板，以确保它们符合安全标准。