perimeter

英 [pəˈrɪmɪtə(r)]

美 [pəˈrɪmɪtər]

n.  (土地的)外缘，边缘; 周长

复数：perimeters　

CET6TOEFLIELTSGRETEM8医学

Collins.1 / BNC.8620 / COCA.6584

牛津词典

noun

• （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
• 周长
  the total length of the outside edge of an area or a shape

柯林斯词典

• N-COUNT 外缘；边缘
  Theperimeterof 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。

英英释义

noun

• the size of something as given by the distance around it
  Synonym:circumference
• a line enclosing a plane areas
• the boundary line or the area immediately inside the boundary
  Synonym:marginborder

双语例句

• It's the perimeter that poses the greatest problem.
  就是大楼的周长造成了最大的问题。
• 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。
• 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。
• 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。
• The barbed wire fence round the perimeter discouraged intruders.
  周围有铁丝网阻止了外人闯入。
• 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。
• 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。
• 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。
• 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。
• 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。