target subtended angle

例句：

1. 1. The target angle of theproject is 45 degrees.
   项目的靶角是45度。
2. 2. The anglebetween the two lines isthe target angle.
   两线之间的夹角就是目标角。
3. 3. The angle ofthe roof is crucial for determining the targetangle.
   屋顶的角度对于确定目标角至关重要。