英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
pendulus查看　pendulus　在百度字典中的解释百度英翻中〔查看〕
pendulus查看　pendulus　在Google字典中的解释Google英翻中〔查看〕
pendulus查看　pendulus　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Velocity - Wikipedia
    Velocity is defined as the rate of change of position with respect to time, which may also be referred to as the instantaneous velocity to emphasize the distinction from the average velocity
  • Velocity | Speed, Acceleration, Motion | Britannica
    Velocity, quantity that designates how fast and in what direction a point is moving A point always moves in a direction that is tangent to its path; for a circular path, for example, its direction at any instant is perpendicular to a line from the point to the centre of the circle (a radius)
  • Velocity - Physics Book
    While instantaneous velocity is defined as the velocity of a body at a specific point in time, the average velocity is the displacement over the time taken for the body to displace itself
  • Velocity: Definition, Examples, Formula, and Solved Problems
    Velocity is the rate at which an object changes position with time An object is displaced when it changes its position The amount of displacement over the time in which the displacement occurred gives the velocity It is a vector quantity that has both magnitude and direction
  • What Is Velocity in Physics? - ThoughtCo
    Velocity is how fast something moves in one direction, measured as a vector The formula for velocity combines speed, distance, and time to calculate motion direction
  • What is velocity? - Khan Academy
    You know that a large displacement in a small amount of time means a large velocity and that velocity has units of distance divided by time, such as miles per hour or kilometers per hour Average velocity is defined to be the change in position divided by the time of travel
  • Speed and Velocity - Math is Fun
    Velocity is speed with a direction Saying Ariel the Dog runs at 9 km h (kilometers per hour) is a speed But saying he runs 9 km h Westwards is a velocity Imagine something moving back and forth very fast: it has a high speed, but a low (or zero) velocity Speed is measured as distance moved over time Example: A car travels 50 km in one hour
  • VELOCITY | definition in the Cambridge English Dictionary
    VELOCITY meaning: 1 the speed at which something is moving: 2 the speed at which something is travelling in a…
  • Speed and Velocity – The Physics Hypertextbook
    Speed is the answer to the question, 'How fast?' Velocity is speed with direction Speed (velocity) is the rate of change of distance (displacement) with time





中文字典-英文字典  2005-2009