视距仪

例句：

1. 1. The surveyor used a rangefinder to measure the distance between the two buildings.
   测量师使用测距仪测量了两座建筑物之间的距离。
2. 2. The pilot used a rangefinder to determine the altitude of the aircraft.
   飞行员使用测距仪来确定飞机的飞行高度。
3. 3. The engineer used a rangefinder to measure the dimensions of the new building.
   工程师使用测距仪测量了新建筑的尺寸。