safety pin
安全标准
safety standards【安全】 标准
暂无补充释义。
相关词条
skin: protective clothing, boots/safety shoes, PVC gloves,
occupant safety
factor of safety
safety means along the route
safety interlock
safety-pin (safety pin)
margin of safety
safety standards【安全】 标准
暂无补充释义。
safety pin
skin: protective clothing, boots/safety shoes, PVC gloves,
occupant safety
factor of safety
safety means along the route
safety interlock
safety-pin (safety pin)
margin of safety