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

• The barbed wire fence round the perimeter discouraged intruders.
  周围有铁丝网阻止了外人闯入。
• 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。
• 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。
• 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。
• 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。
• 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。
• It's the perimeter that poses the greatest problem.
  就是大楼的周长造成了最大的问题。
• We have established a perimeter around the airport.
  我们在机场附近设好了防线。
• 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”。
• Some 300 trees have been ranged along the perimeter hedge
  沿着绿篱栽种着大约300棵树。