red-shift

基本解释

• 使（星体等）红移
• 使红向移动

同根派生

英汉例句

双语例句

• Vibration analysis show that dimer and trimer have typical red-shift hydrogen bond.
  振动分析表明二聚体和三聚体存在典型的红移氢键。
  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.
  虽然这种情况下电磁波的波长不在可见光的范围内，物理学家仍旧分别称波的红移和蓝移为“伸长（Stretching）”与“收缩（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，由于宇宙膨胀，物体（比如恒星或星系）离开地球的速度，通过红移可以被算出来。

权威例句

• 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

词组短语

短语

• gravitational red -shift 引力红移
• absorption red -shift 吸收红移
• Energy red -shift 能量红移
• red -shift of absorption edge 光吸收边红移
• angular diameter -red-shift test 角径

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)

专业释义

化学

• 红移

  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谱结果表明不同浓度的Al掺杂AZO薄膜具有近带边紫外发射和深能级发射两个发射峰,且紫外发射峰随着Al3+浓度的增加先蓝移后红移。

  物理学

• 红移

  The calculation indicates that the band gap of TiO_2 become narrow due to N-doping so-called red-shift.
  计算结果表明N的掺杂导致TiO2晶体的禁带宽度减小,发生了红移现象。