这紫外线光可以，与小球互动，也就是质量重心，当周围暗下来，能看到质量重心运动。
And ultraviolet light will interact with that little ball, the center of mass, and when I then make it dark, you will only see the motion of the center of mass.
结果显示：（1）背越式跳高最大的优越性是弧线助跑起跳能经济实效的降低和升高身体重心，为身体重心运动方向的提早转变和垂直速度的提早积累、增大创造有利条件。
The result is :(1) the most superiority of flop is the approach can change the gravity of body, so that accumulate favorable circumstances for the transform timely of body-gravity.
我向你们提到过,重心的运动是稳定的,若不受外力，我可以再次演示,在空气轨上。
So I mentioned to you that the motion of the center of mass is very uniform in the absence of external forces, and that I can demonstrate for you again with the air track.
你可以看到质量重心，非常稳定地运动。
And then you can really see that the center of mass moves in a very civilized way.
我若是抛铁锤，那么质量重心，也是唯一的质量重心，会沿完美抛物线运动，就像一颗网球。
If I throw up a hammer, then the center of mass and only the center of mass will just go along a perfect parabola as if it were just a tennis ball.
你能看到物体重心吗，它稳定地运动，你们能看到吗？
Can you see that the center of mass is moving very uniformly, or can you not see that?
我们要关上灯，我想给你们展示，质量重心的运动。
So now we're going to turn off the lights and I want to show you the motion of the center of mass.
重心会嘲笑我们，它忽略所有运动，它会匀速运动。
And so the center of mass will just laugh at us and ignore all these motions and will travel at a constant speed very nicely.
因为矫揉造作，正如你知道的那样，是在灵魂，或移动的力，在运动的重心之外的点上出现的时候，才被发现的。
For affectation is seen, as you know, when the soul, or moving force, appears at some point other than the centre of gravity of the movement.
由于重心偏高，机器人的平衡通过设定好的运动算法来维持。
The droid's high center of gravity is balanced by programmed movement algorithms.
骑士的骨盆用来吸收马运动，并帮助控制骑士的重心。
The riders pelvis is used to absorb the horses movement and helps to control the riders centre of gravity.
它支持并连接着身体的不同区域，并将它们各自的重心连接在一起，带来高效的运动和稳定性。
This supports and links both the different regions that makeup our body and aligns their gravitational centres with each other that AIDS efficient movement and stability.
轻合金桥架，较传统设计刚性提高25％，X向导轨重心降低50％， 从而保证了平稳、精确的运动。
The light alloy bridge is 25 percent stiffer than traditional designs and the X rail has a 50 percent lower center of gravity for smooth, precise operation.
大多数运动员也发现保持一本训练日志能提供一较敏锐的训练重心和更迅速朝向他们的目标来成长。
Most athletes also find that keeping a log provides them with a sharper training focus and more rapid growth toward their goals.
通过分析双足步行机器人整体的协调运动，基于D -H法的坐标变换，对步行机器人四肢串联机构进行了重心合成计算。
This paper analyse global coordination motion of biped robot, compute the center of gravity of four limbs mechanism of series connection based on the coordinate transformation of D-H method.
实现它：重心、背部和肩膀练习有助于保持运动平衡。
Make it happen: Core, back, and shoulder work will help you stay upright.
通过测试人体重心的水平运动，可以分析人体的稳定性与车辆参数的关系，有助于在车辆设计中提高乘坐舒适性。
The horizontal movement of body's gravity center can be tested and used to analyse the relationship between human body stability and automobile parameters.
在过渡阶段，我省运动员身体重心速度和铅球速度都有较大的下降而且过渡阶段时间明显偏长。
At the transitional stage, the speed of body barycenter and the shot descend too much, and the transitional time is obviously too long.
同时证明，在起跳过程中摆动腿的摆动动作对身体重心的运动状况具有重要的影响。
The result showed that the swing leg has great influence on the motion of the body's center of gravity in the take off.
游泳运动员在空中时，身体重心的运动轨迹一经确定，就不会因为任何一种身体动作而有所改变。
Once a swimmer is in the air the trajectory of the center of gravity is set and cannot be changed by any body movements.
这些运动都要保持重心平衡，所以概念是相通的。
It actually involves having balance in terms of where your center of gravity is, so yeah, the concepts are similar.
重心位置和主轴用相对于运动台表面来表示。
The results for the centre of gravity position and principal axes are presented relative to the surface of the moving table.
该球形机器人由两个电机驱动两组螺旋传动机构带动球壳滚动实现直线运动，并通过改变球内部分的重心位置来实现转弯。
It moves ahead by two motors, which are attached to the shell, driving the corresponding screw transmission mechanism respectively, and turns by changing the position of the barycenter.
根据显、隐式总重心圆的物理意义，对人体总重心圆原理进行了延拓，并指出了运动环节和不动环节重量矩的应用。
Then the physics meanings of obvious and concealed circles of gravity center of human body are probed, and the principle mentioned above is extended.
对于单板滑雪运动员和爱好者来说，调整出自己的脚位角度和重心位置是非常重要的。
For the athletes and fanciers in snowboard sports, it is very important to find out a good Angle and position of snowboard stance according to own character.
在80年代早期和中期，家庭制造市场重心向高效旅行方向转移，而非纯运动飞机。
In the early to mid 1980s, the homebuilt market began to shift toward efficient touring, rather than pure sport airplanes.
在80年代早期和中期，家庭制造市场重心向高效旅行方向转移，而非纯运动飞机。
In the early to mid 1980s, the homebuilt market began to shift toward efficient touring, rather than pure sport airplanes.
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