多普勒的意思、翻譯和例句

是什麼意思

「多普勒」是指「多普勒效應」,這是一種物理現象,當波源與觀察者之間的相對運動改變時,波的頻率會發生變化。這種效應在聲波和電磁波中都可以觀察到。常見的例子包括警車的警報聲在接近和遠離時音調的變化,以及天文學中用於測量星體運動的紅移和藍移現象。

依照不同程度的英文解釋

  1. A change in sound or light when something moves.
  2. The way sound changes as things move closer or further away.
  3. A change in frequency due to movement.
  4. The effect of movement on waves.
  5. The change in frequency of waves when the source is moving.
  6. A phenomenon observed when the source of waves moves relative to an observer.
  7. The change in perceived frequency of a wave in relation to the observer's motion.
  8. A physical effect related to the relative motion between a wave source and an observer.
  9. An observable change in the wavelength or frequency of a wave in relation to the motion of the source or observer.
  10. A phenomenon that occurs when a wave source moves relative to an observer, altering the perceived frequency.

相關英文單字或片語的差別與用法

1:Doppler effect

用法:

這是描述波的頻率變化的現象,通常在聲音和光波中觀察到。當波源向觀察者移動時,觀察者會聽到較高的頻率;當波源遠離觀察者時,頻率會變低。這一效應在日常生活中可以觀察到,例如救護車接近時的警報聲音調變化。

例句及翻譯:

例句 1:

救護車的警報聲因為多普勒效應而變得尖銳。

The ambulance siren becomes sharper due to the Doppler effect.

例句 2:

科學家利用多普勒效應來測量星體的速度。

Scientists use the Doppler effect to measure the speed of celestial bodies.

例句 3:

多普勒效應在雷達技術中有重要應用。

The Doppler effect has important applications in radar technology.

2:Doppler shift

用法:

這是指波的頻率或波長因為波源或觀察者之間的相對運動而發生的變化。這一術語通常用於天文學和無線通信領域,描述光波或電磁波的變化。當星體朝向地球移動時,光波會變得偏藍;當它們遠離地球時,光波會偏紅。

例句及翻譯:

例句 1:

天文學家觀察到星系的多普勒位移,這表明它們正在遠離我們。

Astronomers observed the Doppler shift of galaxies, indicating they are moving away from us.

例句 2:

多普勒位移可以幫助我們理解宇宙的擴張。

The Doppler shift can help us understand the expansion of the universe.

例句 3:

在無線通信中,多普勒位移可能會影響信號的質量。

In wireless communication, the Doppler shift can affect the quality of the signal.