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

• Some 300 trees have been ranged along the perimeter hedge
  沿着绿篱栽种着大约300棵树。
• 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。
• 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。
• It's the perimeter that poses the greatest problem.
  就是大楼的周长造成了最大的问题。
• 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。
• 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。
• After that I opened the East perimeter fence.
  之后，我打开了东面的围墙。
• 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。
• Somebody said a boat breached the perimeter.
  有人说一艘船突破了警界线。
• 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。