stretching device的用法和樣例：
例句
- The threaded internal fastener provides better adjustment of the assembly than a cam type clamping device.
有螺紋的內緊固件與凸輪型夾緊裝置相比可為組件提供更好的調節。 - A locking device and a reverse counterboring tool bar are designed, their structure and working principle are introduced.
設計了一種鎖緊裝置和一反鍃孔刀桿，介紹了其結構原理。
