上方确保：在已从顶端架好确保绳的岩壁上做平衡攀登（通常可先走到上方架设固定点）。
【生活】安全绳【运输】安全绳
safety rope
暂无补充释义。
相关例句
相关词条
margin of safety
safety pin
Bio-safety Cabinet
margin of safety
safety glass
safety means along the route
Occupational safety
REELS for safety belts, e.g. inertia REELS