margin of safety
【运输】避免从降落伞中掉下的保险板【运输】反冲突路程计护栏
safety guards against falling out of the perambulator
暂无补充释义。
相关词条
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