negative acceleration 中文意思是什麼

negative acceleration 解釋
負加速度, 減速
  • negative : adj 1 否定的 否認的；拒絕的 （opp affirmative）； 反對的 反面的；消極的。2 （opp positive） 【電...
  • acceleration : n. 1. 加速；促進。2. 【物理學】加速度；變速。3. 【教育】加速升級。
  1. The acceleration is positive if the speed is increased, negative if speed is decreased

    速度增加的加速度為正加速度，速度減少的加速度為負加速度。
  2. If an arm is stretched forward under water resistance is increased and a reaction force backward is developed, both of which would contribute to negative acceleration

    如果手臂在水中是向前伸展則阻力會隨之增加而向後方的反作用力也會出現，二者都會產生負加速度。
  3. When a swimmer slows and then finally applies forces there are stages of slowing down ( the correct term is negative acceleration not deceleration ) and speeding up ( the correct term is positive acceleration not acceleration )

    當游泳運動員慢下來然後增加力量以求得繼續前進時會有不同的階段，這就是減速階段（正確用語是負加速度而非減速）和加速階段（正確用語是正加速度而非加速） 。
  4. Extreme negative and positive acceleration phases are not a characteristic of swimmers who must be efficient ( e. g., 200 m plus ) who usually demonstrate high rates, almost continuous propulsive force production, and minimum periods of time in long " sculling boat " positions

    最終的負加速度和正加速度階段並不是一個有效率的（例如200多米）和經常呈現高效的，能夠持續產生推進力和盡可能減少處于長的皮劃艇位置的時間游泳運動員的特徵。
  5. The theory of the simulation is that, firstly put fuze and parts in simulation device in reverse, then fire them in high speed by air gun, and they fly into gun spinning quickly and impact cushion and brass block in it, negative acceleration because of impact is to simulate setback, meanwhile they spin with spin gun when impacting, so spin environment can be simulated, so the simulation system can stimulate setback and spin of fuze in fire

    該模擬系統的原理是將引信及其零部件倒置在模擬彈丸中，通過空氣炮以高速發射出去，然後飛入高速旋轉的旋轉管內，與旋轉管內的緩沖塊和黃銅塊碰撞，碰撞而形成的負加速度作為引信發射時受到的后坐，由於碰撞時與旋轉管一起旋轉，模擬引信發射時的旋轉環境，達到模擬引信發射后坐與旋轉環境的目的。
  6. In the course of time positive and negative acceleration impulses tend to cancel one another.

    在長時間中，正向和反向加速度沖擊有互相抵消的趨勢。
  7. The findings show that ( 1 ) most acceleration mechanisms would facilitate npd speed effectively except the external sourcing of knowledge ; ( 2 ) internal corporate - level acceleration mechanism has a positive direct and indirect influences on project success, while two acceleration mechanisms of internal project - level and external sourcing of knowledge only have indirect effects ; ( 3 ) the result identifies a significant positive relationship between npd speed and quality as well as a significant negative relationship between npd speed and cost

    主要研究發現為： （ 1 ）除了外部技術來源加速機制一項外，其他加速機制都能有效加速新產品開發速度； （ 2 ）內部公司層級加速機制對專案成功有正向的直接效果與間接效果，而內部計畫層級加速機制與外部技術來源加速機制兩項則僅有間接效果； （ 3 ）新產品開發速度愈快，愈能降低開發成本以及提升開發品質。
  8. Negative acceleration phase

    負性加速期
  9. This sequential action requires reciprocal even movements with the change of direction at each extreme of movement range requiring negative acceleration, stopping, and acceleration in the body roll

    這些連續的動作要求身體滾動時的減速，停止和加速階段動作在接近結束時的換方向動作是彼此相反的。
  10. The negative pressure causes the acceleration of the universe, as observed from the type ia supernova observations

    負壓強令宇宙膨脹不斷加速，就有如從觀測ia型超新星所得出的結論一樣。
  11. Acceleration : a change in velocity with respect to time. values are either positive or negative with standard orientation

    加速度：速度相對時間的變化。加速度值根據確定的方向而為正或者負。
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