window sash lift

例句：

1. 1. The windowsash lift is a convenient way to open and close the window without having to reach up.
   窗户滑轨升降机是一种无需伸手就能打开和关闭窗户的便捷方式。
2. 2. The window sash lift has been designed to be easy to use and maintain.
   窗户滑轨升降机的设计旨在易于使用和维护。
3. 3. The window sash lift is essential for people with mobility issues who need to access their windows easily.
   对于行动不便的人来说，窗户滑轨升降机是必需的，他们需要轻松地访问自己的窗户。