movement joints

• 伸缩缝

movement joints的用法和样例：

例句

1. Similarly, The joints must be interlinked with housing area.
   同样，与房屋相通的伸缩缝也要算面积。
2. Only bearings and extension joints need to be controlled at regular intervals.
   只有支座和伸缩缝需要定期检查和调整。