velocity
英 [v??l?s?ti]
美 [v?'lɑs?ti]
助記提示
我們在學物理的時候，都知道表示速度的是字母“v”, 它就是由單詞 velocity 的首字母縮略而來。
中文詞源
velocity 速度來自拉丁語volo,飛，詞源同volatile,volley,引申義極快的速度?；騺碜岳≌Zvehere,攜帶，運載，詞源同vehicle.
英文詞源
- velocity (n.)
- early 15c., from Latin velocitatem (nominative velocitas) "swiftness, speed," from velox (genitive velocis) "swift, speedy, rapid, quick," of uncertain origin, perhaps related to vehere "carry" (see vehicle), or from the same root as vigil.
雙語例句
- 1. Acceleration and velocity are both vectors.
- 加速度和速度都是矢量。
來自《權威詞典》
- 2. the velocity of light
- 光速
來自《權威詞典》
- 3. Einstein's theory links energy with mass and velocity of light.
- 愛因斯坦的理論把能量同質量和光速聯系起來.
來自《簡明英漢詞典》
- 4. The velocity of light is about 300000 kilometres per second.
- 光速約為每秒300000公里.
來自《現代漢英綜合大詞典》
- 5. A bullet goes from this gun with a velocity of 3000 feet per second.
- 此槍射出的子彈,其速度為每秒3000英尺.
來自《簡明英漢詞典》