1.
Radio waves travel in straight lines.
无线电波是直线传播的。
2.
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。
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.
In a uniform medium light travels in straight lines.
在均匀介质中光沿直线传播。
5.
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。
6.
These high-frequency short waves are only able to travel in straight paths from the transmitter.
这些高频短波从发射机发出后只能以直线传播。
7.
These high-frequency shout waves are only able to travel in straight paths from the transmitter.
这些高频短波从发射机发出后只能从直线传播。
8.
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
9.
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。
10.
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。
11.
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
12.
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。
13.
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。
14.
the amount by which a propagating wave is bent.
波在传播过程中对直线路径的偏离。
15.
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。
16.
Microwaves that transmit televesion signals aways travel in a straight line.
传播电视信号的微波总是以直线的方式行进。
17.
Study on Propagating Regulation about Flame Wave of Coal Dust Explosion in Straight Roadway
直线巷道内煤尘爆炸火焰波的传播规律研究
18.
Use Streaming Media Technology and Mobile Network Technology to Construct New Mode to Realize Trans-Regional Live Radio Broadcast
利用流媒体技术和移动无线网络构建广播异地直播传输新模式