knife-edge

英 [ˈnaɪf edʒ]

美 [ˈnaɪf edʒ]

n.  刀刃

复数：knife-edges　

习惯用语

n.

on a knife-edge
• 胜负难料；成败未定
  finely balanced between success and failure
• The economy is balanced on a knife-edge.
  经济形势尚不明朗。
• 十分焦虑；急于知道结果
  very worried or anxious about the result of sth

牛津词典

noun

• 刀刃
  the sharp edge of a knife

柯林斯词典

• PHRASE 形势难料；结果未卜
  To beon a knife-edgemeans to be in a situation in which nobody knows what is going to happen next, or in which one thing is just as likely to happen as another.
  1. His future remains on a knife edge...
     他前途未卜。
  2. The game is poised on a knife-edge. One mistake or one piece of good luck could decide it.
     比赛形势扑朔迷离。一个失误或是一点运气就有可能决定胜负。
• ADJ-GRADED 形势难料的
  You can useknife-edgeto refer to something that is very exciting or tense because you do not know what is going to happen next.
  1. Tonight's knife-edge vote could be uncomfortably close.
     今晚投票的结果很难预料，双方实力可能会很接近，这令人紧张不安。

英英释义

noun

• a narrow boundary
  1. he lived on a knife-edge between genius and insanity

双语例句

• According to the optimization and simulation result, it shortens the distance from the knife-edge to the aspheric surface to be tested and obtains higher compensation precision.
  从设计结果上看，它缩短了刀口到待检非球面的距离，获得高精度补偿。
• Changed machine small, energy-saving, grinding out any angle is a knife-edge sharp and durable replacements.
  改机体积小，节能，磨削出的任何角度刀口锋利耐用是更新换代产品。
• He's on a knife-edge about his exam results.
  他对考试成绩十分担心。
• The agricultural merchandisation is a double knife-edge sword.
  农业商品化是一把双刃剑。
• On Orbit MTF Test Research of Remote Sensors Based on Knife-edge Method spaceborne remote sensing
  基于刃边法的航天光学遥感器在轨MTF测试研究
• The setup of knife-edge thermometry is designed and built to quantify the effect of the chromium beam collimation by laser cooling.
  设计搭建了刀口法测温实验装置，对激光多普勒冷却准直效果进行了定量评价。
• The handle is arranged over the main knife-edge area of the knife body.
  所述刀柄位在刀体的主刀口区的正上方。
• Abstract: Shear force is interrelating with width and thickness of plate and obliquity of knife-edge.
  文摘：斜刃剪切时，剪切力的大小与板料的宽度、厚度及斜刃倾角有关。
• Tonight's knife-edge vote could be uncomfortably close.
  今晚投票的结果很难预料，双方实力可能会很接近，这令人紧张不安。
• I want to be nose high when I do my roll for the knife-edge pass at show center.
  当我在展览中心上空横滚准备做刀锋通场的动作时我要让机头抬高。