It came from the direction of Sagittarius; the nearest star in that direction is 220 light-years away.
它来自射手座的方向；那个方向最近的恒星距离220光年。
For certain wavelengths of light, routers along that path would accept signals coming in from only one direction and send them off in only one direction.
这条链路上的路由器对某种特定波长的光束，只接受从一个方向进入的信号，也只向一个方向发送这些信号。
White and gray reflecting CARDS helped intensify shadows that added dimension and underscored the direction of the light.
白色和灰色的补光板帮助增加阴影的密度，强化了阴影并突出了光线的方向。
Howard Wiseman of Griffith University proposed that it might be possible to measure the direction a photon (particle of light) was moving, conditioned upon where the photon is found.
格里菲斯大学的霍华德·怀斯曼提出测量一个正在移动的光子(光粒子)的方向是可能的，条件是光子是在哪里被发现的。
Minimal lamp comes with flexible design that allows easy adjustment of the light direction.
这种最小的灯带有灵活的设计，这可以让我们方便的调节光的方向。
They wanted to build a waveguide, a structure designed to send light in a particular direction, by drilling carefully spaced holes in a gallium arsenide crystal.
他们只是想通过在砷化镓晶体上钻一些有着细心安排间距的小孔来制造波导（一种能令光传播到特定方向的结构）。
The study found that monarch butterflies have an internal sense of direction that allowed them to get from one point to another even in the absence of light by sensing the Earth's magnetic field.
有研究发现帝王蝶有方向感，可以让他们在没有光的情况下，通过磁场感应的方式，它们能精确的从某处飞到另一个地方。
The direction of light reflected from an object depends on its alignment.
光线的方向会根据对象的位置发生反射。
The light was filtered so that it had the same direction, like the light that makes it through polarized sunglasses.
过滤过的光线有着相同的方向，就像穿过偏振太阳镜的光一样。
Diffuse color reflects light that comes from one direction, so it's brighter if it comes squarely down on a surface that if it barely glances off the surface.
漫射光色反射从一个方向来的光，因此对于径直照射的表面来说就比仅是光线斜射过的表面更为明亮。
We then used a quartz calcite, which has an effect on light that depends on the direction the light is propagating, to measure the direction as a function of position.
然后，我们用石英方解石测量作为位置函数的方向，石英方解石对光的影响这取决于光线的传播方向。
Ambient color reflects light that been scattered so much by the environment that the direction is impossible to determine.
环境光色反射由四周环境散射的光量，其方向无法指定。
Leaves turn to the direction that provides the best local light, so they may flourish.
树叶总是朝着阳光最好的方向才长得繁茂。
A directional light doesn't have a position, only a direction.
定向光没有位置，只有方向。
When light waves were projected onto the disc, the direction of the electric field within the waves aligned with the gold nanorods.
当光波被投射到光盘上时，光波内电场的方向会与金纳米棒相一致。
The qualities of a shadow depend on the light direction and intensity, as well as the distance between the object and the surface where the shadow is cast.
阴影深度取决于光照方向和强度，以及物体和投影面的距离。
WHA Member States adopted the ten-year framework outlining the strategic direction for health partners across the globe, in light of the world's health challenges.
会员国针对全球卫生挑战，通过了载明全球卫生伙伴战略方向的十年框架。
For example, rows of vegetables should be planted in an east-west direction. That way, as the sun passes overhead, all the plants will receive an equal amount of light.
例如，成排的蔬菜应朝东西方向种植。
By calculating the path between the lens and the sensor, the precise direction of a light ray can be reconstructed.
通过计算镜头和传感器之间的路径，可以重建一个具有精确方向的光线。
Up until recently, capturing all of the light traveling in every direction in a particular scene required hundreds of cameras tied to a series of computers.
截至目前，要捕捉一个场景中各个方向的所有光线，需要数百台连接到计算机的相机同时工作。
If you are on the ground floor but facing the wrong direction to get much natural light, you can use a strategically placed mirror outside to reflect more light in.
如果你在第一层但是面向一个接受自然光错误的方向，你可以使用一块适当放置的镜子把光线反射进来。
When light from a single direction (e.g. our sun) hits an object, part of the object is in shadow.
当单一光源例如太阳照到某个物体上，物体的一部分会处于阴影中。
Using tubes instead of flat panels makes it possible to capture sunlight, including diffuse light, from any direction-even if it is reflected up from a roof.
用管子来代替平板使的从不同的方向捕捉阳光(包括漫射光)—即使是从屋顶反射过来的光，成为可能。
In physics, a light field describes the direction of all the idealised light rays passing through an area.
在物理学中，光场描述的是理想状态下光线辐射穿过一个地区。
A third volunteer walked at night by the light of the moon. When it was obscured by clouds, he made several turns and ended up heading in the direction he came from.
第三个志愿者在夜晚伴随着月光行进，当月亮被云朵遮盖时，他绕了几个弯，最终还是走到了他原来的地方。
They sort left from right versions using circularly polarised light, whose electric field corkscrews through space in a left or right-handed direction.
旋转偏振光被他们用来筛选左手性和右手性分子，这种光的电场以左手或右手螺旋形式在空间旋进。
They sort left from right versions using circularly polarised light, whose electric field corkscrews through space in a left or right-handed direction.
旋转偏振光被他们用来筛选左手性和右手性分子，这种光的电场以左手或右手螺旋形式在空间旋进。
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