牛顿也证明了漩涡能产生椭圆运动纯属偶然。
Newton also proved incidentally that a vortex could not generate elliptical motion.
椭圆运动给使用者一种经典越野滑雪，爬楼梯和步行相混合的感觉。
Their oval-like (ellipse) motion provides the user with the feel of classic cross-country skiing, stair climbing, and walking all in combination.
错误地认为做椭圆运动的卫星在近地点和远地点的轨道曲率半径不同。
Mistakenly believe that doing elliptical motion of the satellite perigee and apogee of the orbit radius of curvature different.
接着分析了超声波电动机的工作原理和定子表面质点椭圆运动的形成机理。
Then how USM works and how the ellipse trace of particle on the surface of stator forms are analyzed.
根据本文所述方法，已经研制成功了具有平动椭圆运动轨迹的PTZS振动筛。
According to the method presented in the paper, "PTZS" vibrating-screen with parallel motion...
讨论了影响振动筛同步性能和稳定性的因素，给出了要实现平动椭圆运动的条件。
Then the factors influencing the synchronism and stability of the shaker are discussed. At last the conditions of balanced elliptical motion are presented.
综合了圆运动、椭圆运动、和往复直线运动的特点，产量大，能耗小，筛分效率高。
Combining the characteristics of circular motion, elliptical motion, and the reciprocating linear motion. Large capacity, small energy consumption and the screening efficiency is high.
介绍了抛光工具超声椭圆振动产生的基本原理，并实际测试了抛光工具的椭圆运动特性。
The principle of the ultrasonic elliptic vibration produced by polishing tool is introduced and elliptic motion characteristics of the polishing tool are tested.
接着开普勒提出了他的定律，他说行星基本上是绕太阳作椭圆运动，它们在椭圆上有特殊的运动规律。
And then Kepler came with these laws that said basically that planets move in an ellipse around the sun, and that they move in a very specific way along that ellipse.
探讨了电机定子面内行波的实现途径，从理论上证明了面内行波时电机定子表面质点椭圆运动的存在。
Probing the realization way of travelling wave into the stator of motor, proving the surface of motor stator particle existence oval of sport at the wave.
分析得出目前广泛应用于钻井现场的各种运动轨迹振动筛中平动椭圆运动轨迹的振动筛筛分效果最好。
Analysis for a variety of vibrating screen are widely used in drilling that balanced elliptical vibration screen is the best.
根据动力学原理探讨了椭圆振动筛椭圆运动轨迹的形成及其影响因素，分析了附加扭矩对筛箱运动的影响。
By means of dynamic analysis of elliptical vibrating screen with double-axle, the effect of additional torque on the moving track of the vibrating screen case is discussed.
地球沿椭圆形轨道运动。
接着开普勒证明了这个椭圆轨道也能很有效解释其他行星的运行轨迹。然后他提出了行星运动定律，牛顿定律就是以此为理论基础的。
Kepler went on to show that an elliptical orbit is sufficient to explain the movement of the other planets and to devise the laws of planetary motion that Newton built on.
关于椭圆型运动的解释，是那么得简单明了。
And here you have an explanation of an elliptical motion which is amazingly simple.
这不只是在椭圆形的健身房里运动。
It doesn't just have to be working the elliptical at the gym.
这种低伤害的运动使椭圆训练仪成为那些有关节病症以及其它正在伤病恢复中的老年人的最佳选择。
This low impact exercise makes the Elliptical trainer perfect choice for older people, those with joint problems as well as anyone recovering from an injury.
比如，在椭圆机上运动30分钟只能抵掉大约半个蓝莓松饼。
Thirty minutes on the elliptical, for example, cancels out only about half a blueberry muffin.
因为使用的肌肉与您跑步使用的相同，椭圆机是因受伤您无法跑步时的一个极好的低冲击替代运动。
Because the muscles used on the elliptical are similar to those you use when running, the machine is a good low-impact alternative when an injury prevents you from running.
运动场是椭圆形的。
本文给出在非共面椭圆轨道上运行的航天器的伴随运动方程。
This paper presents some equations of adjoint motion for spacecrafts moving in elliptic orbit of different plane.
理论分析数控椭圆滚压成型时工作台的运动方程，实现成型件无凸筋滚压；
The motion equation of the worktable of the NC ellipse rolling is established , so no-rib rolling is realized.
结合直线电机的微量往复进给运动和电主轴的高速性能，实现了对椭圆零件的高速精密加工。
This system could precisely machine elliptic parts with high speed by the micro-reciprocating feed motion of linear motor and the high speed performance of electrical spindle.
为实现电火花电极的微米级步距，设计了椭圆微驱动电路，并能有效地控制电极的运动方向。
The electrode is driven by Elliptical Movement and its direction is controlled by two voltage phase difference.
可进行线性、圆形和椭圆形运动。
并且证明，法面双圆弧齿轮的每一段端面齿廓都是对应椭圆曲线段在相对运动中的包络曲线。
Moreover, the extreme shape of the normal double circle gearing proves to be the involved curve of the corresponding ellipse.
工程上的许多运动组合，诸如8.2.1节中所描述的车轮与钢轨组合，都产生椭圆接触面。
Many engineering pairs such as the wheel-and-rail combination described in section 8.2. 1 generate elliptical contact areas.
而且由于机器是椭圆形的运动乐趣的使用，您更有可能制定出定期。
And since elliptical exercise machines are fun to use, you are more likely to work out regularly.
而且由于机器是椭圆形的运动乐趣的使用，您更有可能制定出定期。
And since elliptical exercise machines are fun to use, you are more likely to work out regularly.
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