全美17个城市大约有30家电视台已经在电视转播塔安装了额外的传输仪，传送本地实况节目到移动信号接收器，而且几乎免费。
Some 30 television stations in 17 cities across the country have now installed additional transmitters on their towers to beam live local broadcasts to mobile receivers mostly for nothing.
电力牵引区段的两条钢轨，既作为轨道电路的通道来传输信号电流，又作为牵引电流的回路来传送牵引电流。
The two rails are not only signal lines of track circuits, but also loop current line of locomotive traction current in electrified railway block.
一种对信号进行调制与解调的功能部件，调制解调器的功能之一就是使数字数据经由模拟传输设施进行传送。
A functional unit that modulates and demodulates signals. One of the functions of a modem is to enable digital data to be transmitted over analog transmission facilities.
所以，传输的电力要足够的低，确保不会烧坏很细的金属线，也不能对通过相邻的非屏蔽线所传送的数据信号造成影响。
Therefore, transmitting electricity must be low enough to ensure that it will not burn the thin metal wire, also cannot make any implications to adjacent non- shield lane transmitting data signals.
信息传输装置将控制信号从开关装置或者脚动开关传送到仪器或仪器组中。
Information transfer devices transfer control signals from the switching devices or foot actuated devices to the devices or groups of devices.
用于无线电传输时，信号用载波传送，通过改变(调制)载波的振幅、频率或间隔来实现。
FOR radio transmission, inFORmation is imparted to a carrier wave by varying (modulating) its amplitude, frequency, or duration.
为了使传输线能够将信号源的信号高效不失真地传送到负载，需要考虑阻抗匹配问题。
The problem of impedance matching must be considered in order to transmit the signal of generator to the load efficiently and distortionless by transmission lines.
光纤-一种非常精密的玻璃纤维，它比传送电子信号的铜线能传输多得多的信息。
Optical fiber (fiber Optics) - an extremely fine glass fiber able to carry much greater amounts of information than copper wire carrying electric signals.
它是把钢轨作为信号传输线，以此来满足传送多控制信息的需要。
The rail is used as transmission line for transmitting signals in this system, in order to meet the need of transmitting multi-purpose control information.
系统是双向的多路传输系统，既要向接收端传输视频信号，又要向摄像机传送控制信号和电源。
System is two-way much way transmission system, should to receive the signal of videos from the end transmit, and also convey control signal and power to the camera.
系统是双向的多路传输系统，既要向接收端传输视频信号，又要向摄像机传送控制信号和电源。
System is two-way much way transmission system, should to receive the signal of videos from the end transmit, and also convey control signal and power to the camera.
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