之间: between; among安全: safe; secure; safety; securi ...防范: be on guard; keep watch; kee ...的: 4次方是 The fourth power of 2 i ...一个: one; a; an或: nǎi-.一组: a set; a group; a piece; a b ...系统: system防火: fire prevention; fire safety ...安全防范系统: safety and protection system; sas; security system安全防范报警系统: guard and alarm system安全防范: safety precautions安全防火系统分析: fire safety system analysis安全防火沟: safety fire line安全防火林: safety firebreak安全防火门: security fire door安全防范产品: security and protection products安全防范措施: scope out the security安全防范信号: burglar signal安全防范报警设备: burglar alarm system; safety requirements and methods for security alarm equipment文物系统博物馆安全防范工程设计规范: designed criterion of security and alarm enginering for cultural museums series或一组: trio安全防范工程程序要求: gb-t75-94集装箱安全防范措施: csi container security initiative安全防护系统: safeguard system