uncoated tinplate base

例句：

1. 1. The new carhas a sleek and uncoated tinplate base that makes it look more expensive.
   这款新车有一个光滑且无涂层的锡板基座，让它看起来更显高档。
2. 2. The engineer used an uncoated tinplate base to build the bridge, which was crucial for its stability.
   工程师使用了无涂层的锡板基座来建造这座桥，这对于它的稳定性至关重要。
3. 3.The construction of the new airport required the use of uncoated tinplate base, which made it easier to install the runways.
   新机场的建设需要使用无涂层的锡板基座，这使得安装跑道变得更加容易。