mill stand cap

例句：

1. 1. The mill stands tall in the town center, attracting many visitors.
   这座磨坊矗立在市中心，吸引了许多游客。
2. 2. The mill stand cap is a crucial part of the machinery, ensuring smooth operation.
   磨坊底座盖是机械的关键部分，确保机器平稳运行。
3. 3.The mill stand cap has been replaced with a new one to improve efficiency.
   为了提高效率，已经更换了磨坊底座盖。