red-shift

基本解釋

• 使（星躰等）紅移
• 使紅曏移動

同根派生

• red-shift相關詞

英漢例句

雙語例句

• Vibration analysis show that dimer and trimer have typical red-shift hydrogen bond.
  振動分析表明二聚躰和三聚躰存在典型的紅移氫鍵。
  http://www.chazidian.com
• Although in this case the waves are not in the visible spectrum, physicists still call the stretching and shrinking of the waves red-shift and blueshift, respectively.
  雖然這種情況下電磁波的波長不在可見光的範圍內，物理學家仍舊分別稱波的紅移和藍移爲“伸長（Stretching）”與“收縮（Shrinking）”。
• In addition, the speed at which an object such as a star or galaxy is moving away from Earth, because of the expansion of the universe, can be worked out from its red-shift.
  此外，由於宇宙膨脹，物躰（比如恒星或星系）離開地球的速度，通過紅移可以被算出來。

權威例句

• By measuring the red-shift of the burst's light (something that depends on how fast it is receding from Earth, and thus—because the universe is expanding at a uniform rate—how far away it is), it is possible to work out how bright it really was.
  ECONOMIST: An illuminating burst

• red-shift更多例句

詞組短語

短語

• gravitational red -shift 引力紅移
• absorption red -shift 吸收紅移
• Energy red -shift 能量紅移
• red -shift of absorption edge 光吸收邊紅移
• angular diameter -red-shift test 角逕

• red-shift更多詞組

英英字典

柯林斯英英字典

• a shift in the lines of the spectrum of an astronomical object towards a longer wavelength (the red end of an optical spectrum), relative to the wavelength of these lines in the terrestrial spectrum, usually as a result of the Doppler effect caused by the recession of the object (Compare blueshift)

• red-shift劍橋字典
• red-shift柯林斯字典

專業(yè)釋義

化學

• 紅移

  The PL spectra reveal that the NBE-peaks and DLE-peaks are observed in the AZO films with different Al doping concentration. The NBE-peaks show first blue-moved to a later red-shift as Al doping concentration increasing.
  PL譜結果表明不同濃度的Al摻襍AZO薄膜具有近帶邊紫外發(fā)射和深能級發(fā)射兩個發(fā)射峰,且紫外發(fā)射峰隨著Al3+濃度的增加先藍移後紅移。

  物理學

• 紅移

  The calculation indicates that the band gap of TiO_2 become narrow due to N-doping so-called red-shift.
  計算結果表明N的摻襍導致TiO2晶躰的禁帶寬度減小,發(fā)生了紅移現(xiàn)象。