ceiling height indicator

例句：

1. 1. The ceiling height indicator is used to measure the distance from the floor to the top of the ceiling.
   天花板高度指示器用于测量从地板到天花板顶部的距离。
2. 2. The manufacturer of the ceiling height indicator provided detailed instructions on how to install it correctly.
   天花板高度指示器的制造商提供了详细的指导说明如何正确安装它。
3. 3. The ceiling height indicator was used to determine the optimal position for the window in the room.
   天花板高度指示器被用来确定房间窗户的最佳位置。