perimeter

noun

1. （土地的）外缘，边缘
   the outside edge of an area of land
   1. Guards patrol the perimeter of the estate.
      保安人员在庄园四周巡逻。
   2. a perimeter fence/track/wall
      围绕四周的栅栏 / 小径 / 墙
2. 周长
   the total length of the outside edge of an area or a shape

1. N-COUNT 外缘；边缘
   The perimeter of an area of land is the whole of its outer edge or boundary.
   1. ...the perimeter of the airport...
      机场四周
   2. Officers dressed in riot gear are surrounding the perimeter fence.
      身穿防暴服的警察正在包围外围的栅栏。

1. The two men broke out of their cells and cut through a perimeter fence.
   这两个人逃出牢房，并越过了围墙。
2. By night, the perimeter wire was illumined by lights.
   到了夜里，周遭的铁丝网都被灯光照亮。
3. Officers dressed in riot gear are surrounding the perimeter fence.
   身穿防暴服的警察正在包围外围的栅栏。
4. Some 300 trees have been ranged along the perimeter hedge
   沿着绿篱栽种着大约300棵树。
5. Staff withdrew from the main part of the prison but secured the perimeter
   工作人员从监狱的主要区域撤出，但外围仍派人守卫。
6. They ended up ripping down perimeter fencing and tussling with the security staff
   最终他们拆毁了四周的围栏，与保安人员厮打起来。
7. The plane veered off the runway and careered through the perimeter fence
   飞机突然偏离跑道，高速冲过了周围的护栏。
8. A fence marked the perimeter of the field.
   一道篱笆标明了那块田地的周界。
9. We have established a perimeter around the airport.
   我们在机场附近设好了防线。
10. It's the perimeter that poses the greatest problem.
    就是大楼的周长造成了最大的问题。
11. Liverpool also donated perimeter board advertising and a piece in the matchday programme to RBL.
    利物浦还将利用球场广告板和比赛日节目单中的一页为RBL宣传和募捐。
12. The plane stalled,# cc0066> 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。
13. Geometric data of ellipse in hyperbolic space are considered, such as perimeter and mean absolute curvature.
    在双曲空间中，对椭圆的周长及平均绝对曲率做出细致考察。
14. After that I opened the East perimeter fence.
    之后，我打开了东面的围墙。
15. An organization's perimeter defense devices would be overwhelmed by a large attack.
    一个机构的周边防御设备会被大型攻击淹没。
16. Under perimeter IP list and internal IP range configuration, click add.
    在“外围ip列表和内部ip范围配置”下，单击“添加”。
17. Activities funded include information technology security, bio-identification, perimeter surveillance and weapons detection.
    吸引到资金的领域包括信息技术安全、生物识别、周界监视和武器探测等。
18. The barbed wire fence round the perimeter discouraged intruders.
    周围有铁丝网阻止了外人闯入。
19. And LAPD has the perimeter?
    lapd已经将其包围了？
20. Perimeter columns and flat plate floor construction complete the system.
    边界柱和楼板完成了这个系统。
21. One person's "security perimeter" is another's "broken network".
    一个人的“周边安全”，是另一种的“断网”。
22. He took some perimeter shots, but his jumping was restricted.
    他只是做了一些投篮的练习，但是跳动受到限制。
23. Somebody said a boat breached the perimeter.
    有人说一艘船突破了警界线。
24. Bill, I need you to set up a perimeter around his house.
    比尔，我要你在他家附近设置警戒圈。
25. This is phoenix. we've reached the perimeter.
    我是菲尼克斯。我们靠岸了。
26. In the same way, the bedrooms face a garden enclosed by the building and the perimeter wall.
    以同样的方式，卧室都面临着建设和围墙内的一个花园。
27. These outdoor luminaires were designed for perimeter security illumination and also incorporate occupancy sensors to properly manage energy usage.
    这些户外照明专门为边界安全照明设计，和传感器一起实现妥善地管理能源使用。
28. To further understand the concept of a circle, distinguish the perimeter and the area of a circle.
    进一步熟记圆的概念，区分圆的周长和面积。
29. Refer to the area crossing the perimeter palisades or limited by the white stake.
    指越过周边栅栏或被白色的立桩限定的区域。
30. The guard suggested that they move to the public sidewalk at the Prune Yard's perimeter.
    卫兵建议说他们移动到PruneYard周围的公共人行道上。

noun

1. the size of something as given by the distance around it

   Synonym:    circumference

2. a line enclosing a plane areas

3. the boundary line or the area immediately inside the boundary

   Synonym:    marginborder