jackknife是什么意思？

jackknife

英[ˈdʒæknaɪf] 美[ˈdʒækˌnaɪf]

• n. 折叠刀；
• v. 对折，用折叠刀切；

第三人称单数：jackknifes;

过去式：jackknifed;

过去分词：jackknifed;

现在分词：jackknifing;

例句

• Two periodic jackknife, be helpful for national economy growing quickly continuously. 两个周期的重叠, 有利于国民经济持续快速增长.
• But, yahoo still is put in jackknife government issue. 但是, 雅虎仍存在重叠管理问题.
• Yes, simple ones like the swallow and jackknife but not fancy diving. 跳的, 跳简单的例如燕式、弯身式,但不会跳花式.

柯林斯高阶英汉双解学习词典释义

• VERB
  （铰接卡车失控时）弯成V字形，弯折
  If a truck that is in two parts jack-knifes, the back part swings around at a sharp angle to the front part in an uncontrolled way as the truck is moving.
  例句
  His vehicle jack-knifed, and crashed across all three lanes of the opposite carriageway. 他的车弯成V字形，撞进了反方向车道，车身挡住了所有的3个车道。

英英词典释义

• Noun
  1. a large knife with one or more folding blades
  2. a dive in which the diver bends to touch the ankles before straightening out
• Verb
  1. dive into the water bending the body at the waist at a right angle, like a jackknife

行业词典

• 体育： 折叠式撑杆跳高；屈体；折体动作；
  数学： 刀切法；