This spinning motion, at speeds of hundreds of kilometers per second, may cause matter in the disk to take on a spiral shape.
这种以每秒数百公里的速度旋转的运动，可能会使圆盘上的物质呈现出螺旋形状。
So, what Kepler's second law says is that the motion of planets is, first of all, they move in a plane.
开普勒第二定律说到，首先每个行星的运动都保持在同一平面内。
Readers could pore over academic papers about the physical properties of buckyballs, but a 16-second animation describes their motion more easily and arguably more thoroughly.
读者们可能在一些学术论文上读到过关于布基球物理特性的描绘，但都不及这16秒的动画来得轻松、真实和彻底。
And the windows on the second floor, which often access the master bedroom—and your jewelry. It’s not a bad idea to put motion detectors up there too.
当然二楼的窗子也非常重要——因为一旦失守，就意味着你的卧室和珠宝要沦陷，所以在那儿安装一个警报器是个绝好的主意。
This spinning motion, at speeds of hundreds of kilometers per second, may cause matter in the disk to take on a distinctive spiral shape like a cosmic pinwheel.
每秒几百公里的旋转速度可能使圆盘里的物质呈现象宇宙玩具风车一样独特的螺旋形。
For video, that needs to happen at least 25 times a second if the eye is to be fooled into seeing continuous motion.
对视频而言，如果你想看到连续的画面，那刷新率至少每秒要进行25次。
That would that would give rise to a perpetual motion machine, breaking of the second law. It can't happen.
否则就会使，得永动机出现，打破第二定律那是不可能的。
On this second approach the F-8 pilot was observed to have his oxygen mask removed and was seen gesturing to the crew with hand signals in a pushing motion.
在其第二次接近时，歼8飞行员被看到摘下氧气面具，并被看到正在向机组人员作一个向前推进的手势信号。
Second, in order to extract motion data of each facial part from a video stream, this dissertation studies multiple facial feature tracking algorithms.
为了从视频流中提取基于人脸面部特征的运动数据，本文研究了人脸多特征跟踪算法。
It is a remarkable feature of the theory of mechanics that all motion can be described without reference to derivatives higher than the second.
力学理论有一个显著的特点，它可以描述所有的运动而不需涉及二阶以上的导数。
Second, Page sets in motion a positive domino effect of talent moves by promoting Pichai, a capable and potentially woo-able executive.
其次，通过提拔皮查伊这位既有能力又有可能备受支持的高管，佩奇在人才层面制造了一次积极的多米诺效应。
On the basis of Newton's second Law, a motion differential equation has been put forward, by which a formula to calculating instantaneous velocity has been obtained.
依据牛顿第二定律列出运动微分方程序，解方程序并求得计算瞬时速度的公式。
Gears operate in pairs, the teeth of one engaging the teeth of a second, to transmit and modify rotary motion and torque.
齿轮成对运转，无滑动地传递并改变旋转运动和转矩，一个齿轮的齿与配对齿轮的齿啮合。
Second, a motion vector filter (MVF) is introduced to correct the false estimated motion vectors caused by partial similarity in the video sequences.
接着运动矢量滤波器修正了由于局部相似造成的错误运动矢量。
Second, a criterion of the stability of relative motion for the nonholonomic mechanical systems was obtained by using the equation of variation of energy.
其次，基于能量变化方程，给出了非完整力学系统相对运动的稳定性的一个判据；
S. system. It is named for Isaac Newton, whose second law of motion describes the changes a force can produce in the motion of a body.
它以科学家牛顿的名字命名，牛顿的第二运动定律描述了力所能产生的物体运动状态的改变。
He crumples the note angrily, takes a moment to breathe and sweat heavily, then, in slow motion for a second, turns and points a gun at the customers.
他气愤地把纸条握在手中，深深的呼吸了几下，汗涔涔而下，然后是几秒钟的慢动作，他转身，拿起枪，对准一些顾客。
The model of a kind of wave energy device moored on seabed is simplified into a spring-mass-damping system, and then its motion equation is built according to Newton's second law.
将造波水槽内二维浮体牵引弹簧回复液压缸的受力系统简化为弹簧—质量—阻尼器系统，建立数学模型，并根据牛顿第二定律得到运动方程式。
The occupation time in a cone in the positive quadrant for a standard two-dimensional Brownian motion is studied, and its first and second moments are given explicitly.
考虑标准二维布朗运动在正象限锥形区域的占有时，得到其一阶矩和二阶矩的表达式。
A clear form of the equations of motion of systems with linear non -holonomic constraints of second order is presented here. And the use of the field method is extended to these systems.
首先给出二阶线性非完整系统动力学方程的显形式，然后将场方法应用于这类系统方程的积分。
The math model of a single valve system is established on the basis of Newton's second law of motion and pressure dynamics.
本文在牛顿第二定律和压力动力学基础上建立了单气门系统的数学模型。
The first connecting member defines a lost-motion connection with a master cylinder and the second connecting member defines a lost-motion connection with one of the pair of levers.
第一个连接的成员定义了一个失去了与一个主缸和第二个连接的成员的议案连接定义了同一个的杠杆失去了对动作的连接。
This portion is the game logic update sequence that forces the game logic (physics updates, object motion, animation cycling, etc...) to update a set number of times per second.
这部分代码处理游戏逻辑的更新，并且强制要求游戏逻辑每秒执行固定次数。
The second BlackBerry outage in a week shows how Research In Motion Ltd. , the maker of the popular smart phone, is feeling the strain of a ballooning customer base and intensifying competition.
黑莓（BlackBerry）手机一周内第二次出现服务中断显示，这款流行智能手机的制造商Research In Motion Ltd。因客户群不断扩大、竞争不断加剧而感受到了压力。
The array of substrates may also be concurrently moved in a second rotational motion.
该组基片还可以同时进行第二角运动。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
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