safety pin
【机械工程】安全联结（保险抓具）【机械工程】险联接器（安全离合器）
safety coupling (safety clutch)
暂无补充释义。
相关词条
safety glass
safety means along the route
safety standard
safety stock
REELS for safety belts, e.g. inertia REELS
single-phase safety plug with socket
safety vent