And, to say that the motion actually stays in that plane forever means that this guy will not change direction.
那么说运动将永远保持在平面上，这意味着它的方向不会改变。
It was the second plane to take off which hit the World Trade Center first. The earlier flight from Boston then came in from a different direction and struck the other tower.
第二架起飞的飞机首先撞向世界贸易中心，稍早从波士顿起飞的飞机从另一个方向冲向世贸中心的另一幢大厦。
Instead, Collins got them to give him a ride in the opposite direction, by telling them the plane had a nuclear weapon on board—a prearranged cover story to keep the Area 51 craft a secret.
但是，科林斯却请他们带他去相反的方向，他告诉他们这架飞机载有核武器————这是事先安排好的说辞，是为了保守51区飞机的秘密。
How far has the plane traveled, then, in horizontal direction?
飞机飞行了多远？，在水平方向？
We'll be slicing things by a plane that is now in the direction of this vector,u and we'll be looking at the slope of the slice of the graph.
用沿着向量方向的平面,切开图像,然后看图像的剖面图，找出斜率。
He points out that in a train or plane, it's customary to start in the qibla direction but then continue the prayer without worrying about possible changes in position.
他指出在飞机或者火车上应该习惯用qibla指向方向祈祷者并不用担心qibla指向不断发生的变化。
The eight planets of our solar system orbit in the same direction along what's called the ecliptic, a flat plane that's nearly aligned with the sun's equator.
太阳系中的八大行星都沿着同一方向在被叫作黄道面(这一平面与太阳赤道面形成微小的夹角)运行。
A plane is landing, taxiing, suddenly displayed on the radar screen are three enemy in the direction of Australia, 14 F-86 flew separately to Fuzhou, was found shortly with how the us F-100 aircraft.
一架架飞机正在降落、滑行中，突然雷达荧屏上显示三都澳方向出现敌情，14架f- 86分三批向福州飞来，紧接着又发现其后跟有多架f - 100美机。
Traditional "smooth embroidery" stitch embroidery thread is only in the plane according to certain rules of the direction of movement.
传统“平顺绣”针法仅仅是绣线根据一定的规则在平面方向上运动。
Regular light vibrates in all directions perpendicular to its direction of travel; polarized light, however, vibrates only in one plane.
正常光线向各个方向振动垂直的飞行；但是偏振光只有在一个平面上振动。
Ups and downs of leisure vertical direction in the plane with no open cooperation.
休闲的起落在平面的垂直方向上没有开合作用。
The plane moves in one direction while the conveyer moves in the opposite direction.
翻译：飞机朝一个方向移动（所以，飞机并未固定），传送带朝反方向移动。
An equation for the calculation of true shear strain was derived from the integration of infinitesimal shear strain in plane shearing process with constant principal shear strain direction.
对切应变主轴不变的平面简单切变过程，通过无穷小应变的积分，导出了真实切应变计算公式。
Direction of movement and hose axis muse lie in one plane to avoid torsion stress.
说明：运动方向与软管轴线应在同一平面内，以避免产生扭曲损坏。
This paper introduces a new way for defining the maximum principal strain direction in plane strain condition.
本文介绍了一种确定平面应变中最大主应变方向的新方法。
Power strap wheel and working strap wheel must be fixed in the same plane, triangle strap should be in order, to confirm the machine running direction is the same as the mark.
电力肩带车轮和工作肩带车轮必须固定在同一平面，三角皮带应放置正确，以确认机器运行的方向是正确的。
My Lord, I fear that use of the cannon may have compromised our position. The Micronian recon plane is circling back in this direction.
我的阁下，我担心使用加农炮可能暴露了我们的位置，麦可罗斯人的侦察机正在向这个方向回转。
After comparison, cross-array, with four sensors symmetrically located in the same plane, has been regarded as the central array for target direction.
文中首先研究了声目标定向技术，通过对比，确立了平面四元十字阵作为定向的核心阵形。
In the article, a simple method is discussed to confirm the principal stress direction un-den the plane stress condition.
文章给出了一种判断平面应力状态主应力方向的简便方法。
The plane in which three beams are is vertical to horizon- tal scanning direction.
它的荧光粉条与行扫描方向平行，三束平面与行扫描方向垂直。
Based on these opinions, this essay forecasts the changes in plane design circumstances, content, and direction in the 21st century, and tries to work out corresponding measures to deal with them.
本文试从上述观点出发，展望21世纪平面设计环境、内容、方向的变化，并以文献资料为基础，试图阐述对应这些变化的平面设计教学内容与方向。
As my plane descended, I looked out the window, and what I saw was truly spectacular: Countless well-lit buildings sprawled out in every direction for as far as my eyes could see.
飞机降落的时候，我朝窗外望去，窗外的景象真是壮观，放眼望去，到处是建好的高楼大厦。
The in-plane distortion, transverse shrinkage varying along width direction and longitudinal shrinkage varying along length direction of the plate bended by line heating was proposed.
给出了水火弯板变形中的面内扭曲、沿板宽方向变化的横向收缩及沿板长方向变化的纵向收缩的描述函数。
Based on the analytical formula of the plane stress state, a simple and direct distinguishing method is derived with regard to the direction in which the maximal extremes lie.
本文根据平面应力状态的解析式，推导出了一种判别最大应力极值所在方向的简捷方法。
The plane was flying in a northerly direction.
那飞机在向北飞行中。
The ruling class may know "in which direction and with which pilot" they are flying, he says; but the plane is shaking disconcertingly.
在飞行时统治阶层也许清楚“朝何处前进，和哪位飞行员一同协作”，但是飞机正在令人不安地摇晃。
The transmitting probe produces a pulse which causes a P-wave in the normal direction of the plane and a S-wave in its shear direction.
发射探头对岩块法向脉冲后产生纵波，同时在其垂直方向产生横波沿该平面的方向传播。
Simulating fixation screw were entered C3~C7 in different angles of transverse plane direction.
模拟植入C3~7各个节段不同外偏角方向最大螺钉。
To investigate the regularity changing of inferior cervical pedicle channel in different angles of transverse plane direction.
应用数字技术探讨中下预推椎弓根在头尾偏角不变而不同外偏角方向通道投影的变化规律。
To investigate the regularity changing of inferior cervical pedicle channel in different angles of transverse plane direction.
应用数字技术探讨中下预推椎弓根在头尾偏角不变而不同外偏角方向通道投影的变化规律。
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