safety ink防涂改油墨,安全油墨safetyn.安全；保险Safety destroy安全销毁safety loading安全载荷,保险费安全系数附加费safety curtainn.(剧场舞台上的)防火幕safety measure防护措施safety of stop采场安全safety of food粮食安全safety exhaust安全排气阀safety of life生命安全safety foreman安全工长safety of dams经验教训