直线传播
- 网络Rectilinear propagation
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从波动理论出发,证明极限情况下光的衍射结果就是光的直线传播。
Conclusion that result of diffraction of light is rectilinear propagation in limited condition is demonstrated from wave theory .
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特别是其中的第三条描述了针孔成像实验,并用射箭的飞行来比喻光的直线传播。
Especially the third one describes the pinhole image formation experiment and analogies rectilinear propagation with the archery flight .
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光通常以直线传播。
Light typically travels in a straight line .
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根据光的直线传播原理,计算辐射在冠层内三维空间上传播和受冠层内面元截获的过程,建立了PAR在玉米冠层内三维空间上分布的模拟模型。
Based on the principle of geometric optics , a set of models have been developed to simulate the 3D PAR distribution in maize canopy by calculating the light propagation and interceptions among the facets in crop canopy .
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众所周知,光沿直线传播。
That light travels in straight lines is known to all .
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众所周至,光以直线传播。主语从句。
It is well known that light travels in straight lines .
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光以每秒186000英里的速度直线传播。
Light travels in straight lines at186000 miles a second .
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传输电视信号的微波以直线传播。
Microwaves that transmit television signals always travel in a straight line .
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在均匀介质中光沿直线传播。
In a uniform medium light travels in straight lines .
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早先在生活中我们就知道光是直线传播的。
Early in life we learn that light travels in straight lines .
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光沿直线传播这是毋庸置疑的。
It is clear that light travels in straight lines .
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从光的衍射看光的直线传播及像质问题
Light Straight-line Propagation and Imagery Quality From Light Diffraction
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无线电波是直线传播的。这传统一直延续到今天。
Radio waves travel in straight lines . The tradition has persisted to this day .
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这些高频短波从发射机发出后只能从直线传播。
These high-frequency shout waves are only able to travel in straight paths from the transmitter .
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稍加思索,就能理解光总是直线传播的。
With a little reflection , it may be seen that light always travels in straight lines .
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光遇到物体就折射回来,因为光是直线传播的。
Light can be given back when it meets an object because it travels in straight lines .
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不管是发光体还是非发光体发出的光都是以直线传播。
Whether light comes from a luminous or a non-luminous object , it travels in straight lines .
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每当(凡是)波从均匀介质中的波源移出时,它都呈现直线传播。
Whenever a wave moves out from a source in uniform medium , it travels in straight lines .
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普通光源向四面八方辐射,而激光可以基本沿某一条直线传播。
Ordinary radiation light source in all directions , and a laser can basically along a transmission line .
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超短波的传播方式为直线传播,地理环境以及电磁干扰等因素对其传输具有很大的影响。
Geography and other factors on the transmission of electromagnetic interference have a great impact on VHF communication due to the line of sight .
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设水平或竖向地面运动是沿水平方向直线传播的平稳随机过程。
In this paper , the horizontal or vertical ground motion is considered as a stationary stochastic process travelling along an arbitrary horizontal direction .
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毕竟人们一度普遍相信,由于地球是弯曲的,无线电波沿直线传播,所以无线电不能传过大西洋。
After all , was once widely believed that due to the curvature of the earth , radio transmission across the Atlantic would never be possible because radio waves traveled in straight lines .
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他们抬头仰望,看向群星,发现从广阔的宇宙射来的光线变化轻微,并假定光沿直线传播,或这近乎直线。
They look out into the sky , into the stars , and see a slight variance in light rays that come over the vastness of space , and assume a straight path , or nearly straight .
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当在介质中传播的辐射,形如光波、电磁波以及声波等,在通过局部嵌入介质的障碍物时,受其影响必须改变原有的直线传播轨迹,该物理过程称为散射。
The radiation propagating through medium , such as optical , electromagnetic and acoustical waves , will change its original rectilinear trajectory influenced by the obstacles embedded in the medium , and this physical process is so-called scattering .
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在空中声音以直线的方式传播。
In air , sound travels in a straight line .
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但是在心肌分层后兴奋传播途径不再是直线,矢量传播算法也带来误差。
However , there exist errors from both algorithms when the myocardium has the layered structure .
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网络媒体改变了传统媒体单向直线型的传播模式,而更讲求传受双方的互动性。
Network media has changed one-way linear spread model of traditional media to more emphasis on interactivity of transmission by the two sides .
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总之,微波只能以直线的方式传播,没有一系列的传播塔,它们就不能越过漫长的距离,把消息传递到遥远的地方。
On the whole , microwaves can be but only transmitted in straight line , which makes it impossible for them to travel over a long distance and bring signals to remote places without help of trasmission towers .
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不像旋转电机那样,直线电机在其传播过程中有开端和结尾。
Unlike rotary electric motors , the linear motor has a beginning and an end to its travel .
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光像其他辐射能一样辐射,就是说它从光源以直线的方式向外传播。基于分布式外辐射源雷达的反辐射导弹成像与识别技术研究
Like other varieties of radiant energy , light radiates , that is , it spreads out from its source in straight lines . The Research on Imaging and Recognition of ARM Based on Passive Radar with Distributed Illuminators