1.
Light Straight-line Propagation and Imagery Quality From Light Diffraction;
从光的衍射看光的直线传播及像质问题
2.
Especially the third one describes the pinhole image formation experiment and analogies rectilinear propagation with the archery flight.
这是世界上最早的针孔成像实验，也是对光的直线传播特性的最早认识。
3.
Light travels in straight lines at 186 000 miles a second.
光以每秒186 000 英里的速度直线传播。
4.
Such waves radiate at the speed of light and are transmitted not only by line of sight but also by deflection from the ionosphere.
这种电磁波以光速传播，其传播方式不仅通过无线电直线传播，还可通过电离层的反射传播。
5.
Radio waves travel in straight lines.
无线电波是直线传播的。
6.
Light can be given back when it meets an object because it travels in straight lines.
光遇到物体就折射回来，因为光是直线传播的。
7.
Diffraction is the bending of light around an obstacle.
当光遇到障碍物时，光偏离直线传播的现象。
8.
Light can be trusted to curve only in a vertical plane.
可确信光线仅在垂直面内作曲线传播。
9.
Through reflection, it may be proved that light always travels in straight lines.
通过反射作用，能够证明光总是直线传播的
10.
Early in life we learn that light travels in straight lines.
早先在生活中我们就知道光是直线传播的。
11.
Whether light comes from a luminous or a non-luminous object, it travels in straight lines.
不管是发光体还是非发光体发出的光都是以直线传播。
12.
In a uniform medium light travels in straight lines.
在均匀介质中光沿直线传播。
13.
Like other varieties of radiant energy, light radiates, that is, it spreads out from its source in straight lines.
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。
14.
The beam of light is attracted by gravity and follows a curved path rather than a straight line.
光束受引力吸引，不沿直线而沿弯曲路线传播。
15.
Transmission Characteristics of 2D Wave Photonic Crystal Straight Guide;
二维光子晶体直波导传播特性的研究
16.
the amount by which a propagating wave is bent.
波在传播过程中对直线路径的偏离。
17.
Before Einstein, scientists believed that light traveled through space in a straight line.
在爱因斯坦之前，科学家们一直认为光是以直线的方式在空中传播的。
18.
Light and sound move in the form of wave.
光线和声音以波的形式传播。