连接在蒸汽机上的旋转式发动机使轴承转动,机器得以驱动,从而使得利用蒸汽动力纺线和织布的工厂出现。
A rotary engine attached to the steam engine enabled shafts to be turned and machines to be driven, resulting in mills using steam power to spin and weave cotton.
晶体学家们一直认为所以的晶体都具有旋转对称性,这样当它们转动起来时候,从各方面来看都是一样的。
Crystallographers always believed that all crystals have rotational symmetry, so that when they are rotated, they look the same.
另一些观点包括制造一种检测器来试验原子核的旋转动量能否被测量出,或者运用该技术来制造超灵敏的触角。
Other ideas include building a detector to see if the spin of an atomic nucleus can be measured, or using the technique as an ultrasensitive antenna.
每一组收缩都会对环绕在传动轴上的项圈产生压力,于是,这些搏动的肌肉会一齐连续地挤压传动轴,形成转动力,从而产生旋转。
As they do so, each pair applies pressure to a soft ring around the driveshaft. The pulsating muscles collectively and continuously pinch the shaft and apply a rotational force, causing it to turn.
它的眼睛是旋转式的,能够个别转动,如此一来它可以同时注视两个不同的物体!
Its eyes are turreted and can be moved independently so that it can view two different objects simultaneously!
只要我这样使力,旋转的角动量就是想要,水平的转动。
And as long as I torque it like this, that spin angular momentum wants to go around in the horizontal plane.
毫无疑问,在这个,旋转中子星的例子里,所有辐射的能量,都是以旋转动能,为代价。
So there's no question that in the case of this rotating neutron star, all the energy that it radiates is at the expense of rotational kinetic energy.
至于转动惯量,要求的其实是到旋转轴距离的平方。
For the moment of inertia, we want the square of a distance to the axis of rotation.
太阳的旋转周期是,26天,地球是一天,最后把一切转化成,米千克秒的单位,得到旋转动能的数据。
Well, the sun rotates about its axis in 26 days, the earth in one day, and so I finally convert everything to MKS units and I find these Numbers for the rotational kinetic energy.
我喜欢地心吸力旋转,那个持续不停的翻滚转动,那种好像快要从座椅子上滑出去的感觉。
I love the gravity rolls, the constant twists and turns, the feeling that you might fall out of your seat.
随着涡旋转子的平移转动,各压缩室内容积不断发生变化,实现对气体的吸人与压缩。
As the rotor of rotation, the translation of the vortex each compression interior volume change constantly, realize the gas sucked and compression.
小时候,我常常在自家后院长满野花的草地上练习芭蕾舞的旋转动作。
When I was young, I would twirl around and around in the fields of wildflowers that grew in my backyard.
所产生的驻波是一种旋转运动,它是在我们转动圆底杯中的水时会产生的现象。
The resulting standing wave is a swirling motions such as might result if we swirled water in a round-bottomed cup.
开始的时候,一遇到有合适的微风,斯科蒂便会在水上迂回前进并且做旋转动作。
As they began, Scotty weaved and whirled across the water whenever there was a good breeze.
共同旋转圈的作用,像个可以反射或透射这些波的介面,让它们转换星系整体的转动动能为自身的能量。
The corotation circle ACTS as an interface that can either reflect or transmit these waves allowing them to gain energy at the expense of the global rotational kinetic energy of the galaxy.
转动架,转塔车床上的附属物,由一个可安装各种刀具的可旋转的圆筒组成。
An attachment for a lathe consisting of a rotating cylindrical block holding various cutting tools.
旋转动密封装置是旋转控制头轴承总成的关键部件,其性能好坏直接影响旋转控制头的使用寿命。
As the key part of the rotary control head's bearing assembly, the capability of the rotary dynamic seal equipment effects on the using life of the rotary control head.
进口蝶阀是指通过阀轴旋转来带动一个圆盘形的蝶板的转动,达到开启与关闭的一种阀门,在管道上主要起切断和节流用。
Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.
一种减少磨擦的轴承,主要由包括可自由旋转的硬金属珠的环状轨道构成,转动轴或其他部件因撞碰金属珠而转动。
A friction-reducing bearing consisting essentially of a ring-shaped track containing freely revolving hard metal balls against which a rotating shaft or other part turns.
采用多级模态综合技术并利用结构旋转对称的特点,建立包括转动部件和固定部件在内的水轮机整机系统动力特性分析模型。
A model for dynamic analysis on a whole hydroelectric machine system was studied by multiple step mode synthesis technique, which consists of rotary and fixed components.
我们也向你移动的方式进行各种调整,一些超级隐蔽,有些惊人的-就像一个特殊的转动模式,打破你的相机旋转平稳突然跳到。
Weve also made all kinds of tweaks to the way you move, some super subtle, some striking - like a special turning mode which breaks up the smooth rotation of your camera into abrupt jumps.
考虑到垂直井中钻柱受拉段在旋转时的转动效应,建立了顶部悬挂、受分布浮重作用的旋转细长钻柱的分岔微分方程。
Taking into account the rotating effect of the drillstring, this paper presents a bifurcating differential equation for the rotating slender drillstring being in tension in vertical well section.
自旋转已经成为当今3D动作的重要组成部分。以下是一些基本的自旋转动作。它们简单但看起来很酷。相信你会喜欢它们的。
Pirouetting has become an integral part of 3D maneuvers. The following is some basic pirouette based maneuvers. They are simple and look very cool. You will like them.
坐在旋转木马边上的小孩子比坐在中间的感受到更大的转动力,因此就会更晕。
Kids on the edge of the merry-go-round are experiencing greater force, and therefore are getting dizzier, than those at the center.
能有效地运用跳板和横马使重心达到和维持完成跳马所需要的速度,并且在第二次腾空需要的0.08秒内充分地完成复杂的腾空旋转动作。
They can use the board and side horse effectively, make center of gravity, reach and maintain speed needed in the vaulting, and complete the flight movement in 0.08 seconds.
用简单方法求出了在均匀磁场中旋转的导体厚球壳上电荷的分布,证明了在磁场中转动的导体表面电荷分布无普遍公式。
By using a concise method, the charge distribution on the surface of a thick spherical conducting shell revolving in a homogeneous magnetic field is obtained.
这是棵旋转的圣诞树,转动的时候颜色也会变化。
This one is a spinning Christmas tree that changes colors as it goes.
全断面掘进机工作时的运动主要由推进液压缸推动机身的前进运动和旋转电机带动刀盘的转动组成。
The movement of whole-section tunneler is composed of forward movement of tunneler body pushed by the crowd cylinder and rotational movement of disk-cutter driven by the rotating motor.
全断面掘进机工作时的运动主要由推进液压缸推动机身的前进运动和旋转电机带动刀盘的转动组成。
The movement of whole-section tunneler is composed of forward movement of tunneler body pushed by the crowd cylinder and rotational movement of disk-cutter driven by the rotating motor.
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