1 Subjects: “...arch rib inclination angle...”

2 Subjects: “...steel arch bridge...”

3 Subjects: “...search and rescue...”

4 Subjects: “...arch...”

5 Subjects: “...arch...”

6 Subjects: “...search and rescue...”

7 Subjects: “...search and rescue...”

8 “..., search and rescue, and social robotics....”

9