safety ink防涂改油墨,安全油墨safetyn.安全；保险safety summary保安提要safety adapter保险衬套safety locking安全锁定safety voltage安全电压Safety matches安全火柴safety officer安全官员safety glazing安全窗用玻璃safety-catchn.(枪、炮等的)保险栓safety failure安全性故障safety classes安全等级