您要查找的是不是：
- Guards patrolled the perimeter of the airfield. 卫兵沿机场四周巡逻。
- perimeter firewall 边界防火墙
- The perimeter of the airfield is protected by guard-dogs. 机场外的环形防卫圈由警犬保卫着。
- The barbed wire fence round the perimeter discouraged intruders. 周围有铁丝网阻止了外人闯入。
- This port does not have to be open on the perimeter network firewall. 不必在外围网络防火墙上打开此端口。
- Guards had been posted at several points around the perimeter. 在环形防线上已布置了几处岗哨。
- The firewall sit between the power phone system internal network and the public data network. 防火墙位于强力电话系统内部网络与公共数据网络之间。
- A fence marked the perimeter of the field. 一道篱笆标明了那块田地的周界。
- The packet filter rout provide the same functionality as the packet filter firewall describe in section2.1.1. 包过滤路由器与包过滤防火墙具有同一功能，如2。1。1部分所述。
- I guess because I didn't have a firewall installed. 我想是因为我没装防火墙。
- The plane stalled, flipped over onto its back and crashed near the perimeter. 飞机失速了，翻了一个跟头，坠毁在机场环形围栏附近。
- Disconnect the body ground at the firewall. 断开在隔火壁上的车体接地。
- How am I to find the perimeter in the dark? 我在黑暗里怎么看出周围的警戒线呢?
- A firewall screen is all thresh to our datum. 防火墙能保护我们的资料，当然也能防病毒。
- Work out how long the perimeter of the playground. 请你算一算体育场的周长是多少米?
- Gladder Ladder for Great Firewall. 防火长城之梯。
- To poke a hole for port 22 in the firewall. 在防火墙为端口22打开缺口。
- Do you connect from behind a hardware Firewall? 硬件防火墙后是否有连接?
- Guards patrol the perimeter of the estate. 保安人员在庄园四周巡逻。
- The corporate firewall is a double-edged sword. 企业防火墙是一把双刃剑。
