您要查找的是不是：
- RESEARCH OF A KIND OF MEASUREMENT INSTRUMENT OF FREE FALLING OBJECT AND ACCELERATION OF GRAVITY 一种自由落体重力加速度测量仪的研制
- Free falling object 自由落体
- The stock price is falling like a free fall. 股价像自由落体一般坠下。
- Share prices have gone into free fall. 股价猛跌不止。
- After that, it's 50 seconds of intense free fall. 之后,是50秒钟快速的自由降落。
- Is it to practice free fall parachuting? 体验自由落体跳伞？
- Thud: the sound like a falling object hitting the ground. 东西掉地下的声音。
- A falling object gains momentum as it falls. 下落的物体落下时动量增加。
- A falling object gains momentum as it falls . 动量;(火箭)总冲量;动力;[口]惰性,势头;契机,要素
- For large, extended chords thrust is preferable to free fall. 用推力动作弹奏伸展的大和弦优于自由下落动作。
- Pharr enjoyed a minute of free fall as the cold air rushed by. 法尔经历了一分钟的自由落体，尽情享受着迎面而来的清新空气。
- As a falling object speeds up, drag increases until it is equal to gravity. 随着下落物体速度的增加,所受阻力也在增加,直至阻力与重力相等。
- Yuke G Number 12's parachute was shot away! It's in free fall! 12号战车的降落伞被击落！它掉下去了！
- Ups and downs zigs and zags free falls in the dark. 忽上忽下，左转右拐，在黑暗中自由下落。
- To descend nose down at an acceleration usually exceeding that of free fall. 通常以远大于自由落体的加速度下滑.
- Brad: Parachute drop. How about it Trisha? Up for a little free falling? 本：垂直降落。怎么样？体验一下自由落体的感觉。
- Not experiencing the effects of gravity; being in a state of free fall. 失重的没有经受重力作用的；在自由下落的状态中的
- Marotte said Fournier would be in free fall for about eight minutes. 马洛特说，弗尔涅将会在下落过程中作大约8分钟的自由落体运动。
- The footwear shall protect the wearer`s toes against risk of injury from falling object and crushing when worn in work environments where potential hazards occur. 当使用者在户外工作有潜在危险的发生时.;安全鞋/靴应该保护穿戴者的脚趾来自掉落物和挤压带来的伤害风险
- Galileo's experiments threw doubt on Aristotle's theory of falling objects. 伽利略的实验使人们对亚里士多德的落体理论产生了怀疑。
