1.
The most common example of motion with (nearly) constant acceleration is that of a body falling toward the earth.
最普通的匀加速（近似）运动的例子，是落体运动。
2.
The motion of a freely falling body discussed in Chapter 4 is a special case of projectile motion.
在第四章中所讨论的自由落体运动是抛体运动的特殊情况。
3.
The Frame of the Demonstrator of Freely Falling Body Motion and its Teaching Demonstration;
自由落体运动演示仪的制作及教学演示
4.
The law of freely falling bodies is stated as follows:in the absence of air the speed of a falling body does not depend on the body's weight, but only on the time of the fall.
自由落体运动定律可叙述如下：如无空气，落体的速度不取决于其重量而只取决于下落的时间。
5.
The Motion of a Falling Body Considering the High-order Effect of Air Resistance and the Earth Rotation;
考虑空气阻力和地球自转的高次效应的落体运动
6.
Any of various similar unpowered devices that are used for retarding free - speeding or free - falling motion.
缓降物用于阻碍加速前进或自由落体运动的几种类似无动力装置中的一种
7.
(esp in sport)skilfully and accurately done
（尤指体育运动）动作纯熟准确的,干净利落的
8.
Discussing on Training Method of Gymnast s Horse-vaulting Floor Stability;
体操运动员跳马落地稳定性训练方法探讨
9.
The Factors of Influencing the Deviation of Free Falling Body and its Imitation;
影响自由落体偏离运动的因素及其模拟
10.
Kinematics Analysis of MEI Han Movement Revolving Turn 72°Link with Falls to the Ground Techniques of Cross;
梅寒旋子转体720°接竖叉落地技术的运动学分析
11.
Studies on the Transport of Taxifolin and Astilbin in Vitro and Pharmacokinetics in Rats
花旗松素和落新妇苷体外转运和大鼠体内药物代谢动力学研究
12.
A downward movement.
下降，落下向下的运动
13.
Family Sports--Basic of Realizing the Sustainable Development of “Sports for All”;
家庭体育——实现全民健身运动可持续发展的落脚点
14.
Time needed for reaching constant speed when measuring liquid viscosity using falling-ball method
探究落球法测液体黏度实验中小球达匀速运动所需的时间
15.
Sports Foul.
【体育运动】Foul。
16.
A falling object gains momentum as it falls.
物体下落增进动量。
17.
The Influences of Athletes' Rising and Landing Skills on their Results
跳远运动员腾空与落地技术对运动成绩的影响
18.
Differences Between Theoretical Values and Experimental Values About Forces Changing with the Hight of Droping in Sports;
体育运动中一定高度自由下落人体受冲力的实验值与理论值比较分析