Step 2: Look at the top of the building through the inclinator.When you raise the inclinator, the washer and string will move from 0? to a new angle.

• 步骤二：透过角度测量仪看这栋建筑的最高点，当你举高角度测量仪时，垫圈和细绳会从零度移动到一个新的刻度。