既然重力是恒定的，我施加的力在大小上,不变，就是方向不同，无所谓我怎么移动;,答案总是,相同的。
Since gravity is a conservative force, and since my force is always the same in magnitude except in opposite direction, ; it doesn't matter how I move in; it will always come up with the same answer.
,速度改变了方向，但它的大小不变。
The velocities reverse directions, but the speeds remain the same.
另一项实验请参加者从白噪音（持续不变而不突显的噪音，如雨声——译注）中分辨出特定声音的方向。
Another test asked participants to work out the direction of specific sounds embedded within white noise.
另一种方法是，函数值不变的方向是,是与等值面相切的方向。
The other way to think about it, the direction in which the value doesn't change is a direction that's tangent to the level surface.
也就是在什么方向上，函数值不变化呢？
不论群里有多少鸟，每只鸟的飞行的方向和速度，同其他鸟的方向和速度都是不变化的。
Regardless of size, the correlations of a bird’s orientation and velocity with the other birds’ orientation and velocity didn’t vary.
臆想这些趋势，诸如媒体获得更大自由，将会一成不变地走自由化的方向，这是一个错误。
It is a mistake to assume that trends such as greater media freedom push invariably in a liberal direction.
因此即使速率不变，也就是说速度矢量的的大小不变，但它的方向可以做旋转。
So, even if the speed is constant, that means, even if a length of the velocity vector stays the same, the velocity vector can still rotate.
在加工端面、圆弧、圆锥以及蹊径直径相差较大的零件时，沿X轴方向进给时，固然进给速度不变，但切削线速度却不断地变化，导致加工表面质量变化。
In the end, arc, processing and ground is large diameter conical parts, along the X axis into to, is the same, but the linear cutting speed is constantly changing, the cutting surface quality changes.
本工作应用背散射电子衍射技术测得产生浮突的位移在不变线方向附近。
The displacement vector for surface relief was determined to be near the invariant line direction using electron back scattering diffraction method.
动态光束定向技术用于使光束传播方向保持不变，进而将成像目标稳定在视场中的某一固定位置。
The dynamic light beam pointing technology is used to keep orientation of light beam invariable, and light can be focused around some a fixed position in the field of view.
松质骨孔隙率在垂直于轴向的方向基本不变。
The cancellous bone porosity basically keep constant along the transversal direction.
在某些情况下，让尺寸调整保持在水平方或者垂直方向上，或者是长宽比不变可能都非常有用。
In some cases, it's also useful to constrain the resize to either a vertical, horizontal, or locked aspect ratio.
不仅单位时间内移动的距离不变，而且其方向也不改变。
Not only does the distance traveled in unit time remain the same but the direction does not change as well.
你如照直向北走，你的方向是恒久不变的。
流体流动的一种型式。在层流情况下在流动中的每一点处流体流动的方向在不同时刻都保持不变。
A type of fluid flow in which the direction of flow remains constant with time at each point in the flow.
转动惯性：物体在绕着自己的对称轴转动时，具有保持转速和转动轴方向不变的性质。
Moment of inertia: turning around its axis of symmetry, object has the character keeping speed and the direction of the axis of rotation not changing.
现存的建筑将会是——不变——盛开，但同时，伴随着在博物馆广场的新方向，在一个新建筑的屋檐下，开始了新的生活。
The existing building will be - untouched - in full glory, but at the same time begin a new life, with the new orientation at the Museumplein, under one roof with the new building.
在一个方向上有不变的重力在作用，在另一个方向上则是分子的大量不规则的碰撞。
In one direction there is a constant gravitational force, in the other very many irregular blows from the molecules.
保持小主应力、中主应力不变，在大主应力方向加荷是实际工程中可能存在的一种应力路径。
Keeping the minor principal stress and medium principal stress fixed, the loading in the direction of the major principal stress is a potential stress path in practical projects.
当入射角在一定范围内变化时，两束分开的光束的传播方向保持不变。
The propagating directions of the two splitting beams remain unchanged when the incident Angle varies in a certain range.
由于复数小波具备平移不变性和方向选择性等优点，使得它在图像去噪中可以克服离散正交小波变换去噪中存在的毛刺现象。
The merit of both shift invariance and directional selectivity enables the complex wavelet to overcome the artifacts in the discrete orthonormal wavelet denoising.
新方法首先通过阵列方向矢量的泰勒级数展开获得关于分布源中心DOA的两个近似旋转不变关系。
The new method firstly obtains two approximate rotational invariance relations about distributed sources central DOA by the Taylor series expansion of array steering vector.
试样越多，峰顶温度向高温方向偏移，但外推起始温度不变；
The more sample is the more the peak temperature deviates to high temperature, but extrapolated onset temperature is constant.
要在你心目中，确定你喜欢做的是什么，然后方向不变勇往直前的去做。
Try to fix firmly in your mind what you would like to do; and then, without veering off direction, you will move straight to the goal.
要在你心目中，确定你喜欢做的是什么，然后方向不变勇往直前的去做。
Try to fix firmly in your mind what you would like to do; and then, without veering off direction, you will move straight to the goal.
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