jack-knife
英 [d'ʒækn'aɪf] 美 [d'ʒækn'aɪf]

vi.

中间呈V形弯；

变形

过去式：jack-knifed现在分词：jack-knifing第三人称单数：jack-knifes

英英释义

jack-knife

• n.
  • a large knife with one or more folding blades

    同义词：clasp knifejackknife

  • a dive in which the diver bends to touch the ankles before straightening out

    同义词：jackknife

• v.dive into the water bending the body at the waist at a right angle, like a jackknife

  同义词：jackknife

双语例句

1. A heavy lorry has jack-knifed on the motorway, causing long delays.
   一辆重型铰接货车在高速公路上撞成V字形，耽搁了很长时间。

权威例句

Jack-knife
JACK-KNIFE
Jack-knife
Bootstrap Methods: Another Look at the Jackknife
Bootstrap Methods: Another Look at the Jackknife
Bootstrap Method: Another Look at the Jackknife
1977 Rietz Lecture—Bootstrap Methods—Another Look at the Jackknife
Bootstrap methods: Another look at jackknife
The Jackknife, the Bootstrap and Other Resampling Plans
The Jackknife, the Bootstrap and other resampling plans
The Jackknife, the Bootstrap and other resampling plans
A Leisurely Look at the Bootstrap, the Jackknife, and Cross-Validation
The jackknife, the bootstrap and other resampling plans. Society for Industrial and Applied Mathematics