下颌不能再向后运动。
有些婴儿喜欢前向后运动，通常是由提供全尺寸波动。
Some babies prefer the front to back motion that is traditionally provided by full sized swings.
当气缸向后运动时，拉动活塞向后，料缸前腔产生负压。
When the cylinder moves backward, the piston is driven to travel backward and generates negative pressure in the front chamber of the cylinder.
动能是你荡秋千时的速度，即你向前或向后运动时的快慢。
The kinetic energy is the fast part of swinging; it's the speed you have as you rush back and forth.
但他们发现利用向后的散射力牵引粒子向后运动在理论上是可行的。
Here, we show that it is possible to realize a backward scattering force which pulls a particle all the way towards the source without an equilibrium point.
另一种顶棒可以直接和液压缸活塞偶合所以可以实现顶料系统的向前和向后运动。
Alternatively the ejector rod may be coupled directly to the hydraulic ram so that forward and rearward movement of the ejection System may be achieved.
蜘蛛和环绕目的是为了确保直线前进和向后运动，尽量减少失真所造成的一位发言者的暂停。
The spider and surround are designed to ensure linear forward and rearward motion, minimizing distortion caused by the speaker's suspension.
“向后运动似乎可以非常有效的触发认知资源的分配，”来自RadboudUniversity Nijmegen的作者总结道。
"Backward locomotion appears to be a very powerful trigger to mobilize cognitive resources," conclude the authors, of Radboud University Nijmegen.
“向后运动似乎可以非常有效地触发认知资源的分配，”来自RadboudUniversity Nijmegen的作者总结道。
"Backward locomotion appears to be a very powerful trigger to mobilize cognitive resources," conclude the authors, of Radboud University Nijmegen.
跳水运动员向后翻转跳入水中。
腾空阶段：当运动员在空中移动之时，他的腿先向后摆动，然后迅速向前移动。
The flight phase: As an athlete moves through the air, his leg swings backward and then moves rapidly forward.
因此，腿向后伸展的作用力，产生一个向前向上的运动(腾空阶段)。
So, the action of extending the leg backward creates a forward and upward movement (the flight phase).
腿向下和向后有力的伸展产生向前的水平运动。
The powerful extension of the leg downward and backward creates the horizontal movement forward.
横滚轴—又称纵轴。由飞机的前部通向后部。机翼下运动由副翼和飞行扰流板控制。
Roll axis - Longitudinal axis, passes through the airplane from front to rear - wing up and wing down control is by ailerons and flight spoilers.
以下的练习可以有助于习惯向后推的运动。
传动装置有两个差速器，一个用于产生向前和向后的运动，另一个在两侧形成速度差。
The drive train users two differentials, with one to produce forward and reverse motion and the other to produce a difference in speed between the two sides.
他的湿头发向后地被光滑的，而且在他的脸上表达是为运动居住的繁茂青少年的。
His wet hair was slicked back, and the expression on his face was that of an exuberant teenager who lived for the sport.
当后蹄离开地面时，飞节首先是向前运动，而不是向上提，当然更不会向后动。
The hock, as the hind foot leaves the ground, should first move forward rather than being pulled upwards, but certainly not backwards.
这项运动真正唯一的规则就是你不能向后移动，但因为从A点到B点有许多方法，目标就是以最高效、最优雅的方式到达终点。
The only real rule is that you should not move backwards, but given any number of ways to get from point a to point b, the objective is to do so with as much efficiency and style as possible.
向后扩双肩，双肩峰一起运动。
Brace shoulders back so that the shoulder blades move together.
倒浆，把橹或桨向前推以阻止船向前运动或向后移动的一种划船或摇桨方式。
A rowing or paddling stroke in which the oar or paddle is pushed forward, used to check a boat's forward motion or move it backward.
向后跳水：运动员背向水面起跳，在空中向后翻腾入水。
Back dive: a dive where a diver takes off with his back to the water, and spins backwards in the air.
他坐在椅子上，身体向后倾，双脚翘在法官的桌子上，运动鞋没有系鞋带，浑身上下透出对在场所有人的蔑视。
His contempt for everyone in the room extended to his unlaced sneakers braced against the judge's desk as he leaned back on the legs of his chair.
通过任意两坐标系间的向后微分关系，利用运动学方程以及并联机构的环路特性，建立了微机器人的广义几何误差模型。
The method represents the effects of all possible error sources on robotic mechanisms as generalized geometric errors in a unified manner.
肩部纤细，向后延伸而又恰到好处地收拢，肘部与身体垂直，易于运动。
Forequarters Shoulders fine, long and sloping, well laid back and well knit. The elbows hanging perpendicularly to the body and working clear of the side in movement.
七时代的环法赛胜利者也已经注视一可能的来-向后地在法国大旅游 2006 ，虽然德克萨斯州人星期以前从运动仅仅退休了。
The seven-times Tour de France winner has also been contemplating a possible come-back at the French Grand Tour 2006 although the Texan retired from the sport just a few weeks ago.
双脚着地平稳站立，双手紧扣于后背并将肩胛骨向后推挤做扩胸运动。
Stand evenly on both feet, clasp hands behind your back and squeeze shoulder blades together to open your chest.
双脚着地平稳站立，双手紧扣于后背并将肩胛骨向后推挤做扩胸运动。
Stand evenly on both feet, clasp hands behind your back and squeeze shoulder blades together to open your chest.
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