一只小鸟把头上下快速摆动著。
现代短跑技术强调快速摆动与短时着地技术的提高。
Modern techniques for dash emphasize the increase of periodicity of movement and ground-foot impact.
空气流让星光摇摆不定，就像一分硬币的影像在池底快速摆动一样。
Air currents make the starlight jitter back and forth, just as a penny's image seems to dart around the pool's bottom.
不适当的调节会引起反冲力以及垂直度和重复性误差，并且可能造成机器振动(频率高时会快速摆动)。
Improper adjustment will result in errors of recoil force, verticality and repeatability, and also result in machine vibration (it will rapidly swing if the frequency is high).
我看见她的头快速地摆动，我想那是她被牛蹄踢中了。
I saw her head moving fast and I assume that's when she was hit by the hoof of a cow.
正如查理的创作者所说的那样，他们在“拥有相对僵硬的躯干的快速潜艇形鱼类靠相当小的身体和尾巴摆动来游水。”
As Charlie's creators put it, they were after "a fast submarine-shaped fish with a relatively rigid torso that swims with fairly small body and tail motions".
焊接时尽量采用氩弧焊接，采用手工电弧焊时应采用小电流、快速焊，避免摆动。
Welding, as far as possible using argon arc welding, manual arc welding should be used in small current, fast welding, to avoid the swing.
它们多想尝一尝啊，所以一到周五，这两个家伙就表现得十分好动，莫德会快速疯狂地频频上下摆动它的黄色小脑袋，哈罗德摇着尾巴，围着餐桌绕来绕去，眼睛不停地冲主人们眨着。
Maude would Bob her small yellow head up and down in a feathered frenzy. Harold would circle the table, wagging his tail and batting his eyes.
且当行车快速水平移动时与吊具保持刚性约束，避免 吊具发生自由摆动。
The traveling crane maintains rigidity restriction with the lifting appliance in rapid horizontal shift, thus avoiding free swing of the lifting appliance.
当我试着沿空中梯子爬回到木板时，我的胳膊和腿快速上下摆动着。
My arms and legs pumped as I tried to climb a ladder of air, back to the board.
现代短跑技术被认为是以髋为轴的两大腿的高速摆动，以髋为轴的两大腿的快速剪绞—制动是短跑技术的核心。
The modern sprint technique is thought be the high speed swings of two thighs, that the two thighs high speed swings and brakes as axis is sprint technique core.
该设备采用快速夹头，气门双向摆动并同向差动，可以调整控制拍击力和拍击速度，可实现气门与气门座的铰削与研磨。
The muller uses clliper-collet, the gas-valve can flirt and differential, the rapping power and rapping velocity can be adjusted. It can chop and grind the gas-valve and valve seat.
这充分说明在快速的跑动中，支撑腿与摆动腿具有良好的蹬摆效果和身体重心向前性较强的技术特征。
This demonstrates that while sprinting the supporting leg and stamping leg should give out excellent effect, and the center of gravity of bodies need incline apparently forward as well.
采用基于快速傅里叶变换（FFT）技术控制叶片的运动，是一种简单有效的运动控制方法，可以使大量随风摆动叶片的实时绘制成为可能。
The dynamically created primitive strip by the GeometryShader, image-based rendering method and the FFT-based flow control method make the real-time rendering dynamic grass blade possible.
采用基于快速傅里叶变换（FFT）技术控制叶片的运动，是一种简单有效的运动控制方法，可以使大量随风摆动叶片的实时绘制成为可能。
The dynamically created primitive strip by the GeometryShader, image-based rendering method and the FFT-based flow control method make the real-time rendering dynamic grass blade possible.
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