电信专业英英词典C-2
Cassegrain Antenna 1 - An antenna that places a subreflector at the focal point to reflect energy to or from a feed located at the apex 2 of the main reflector.
CB - This stands for Citizen's Band and is low-power (up to 4 Watts), public radio that does not require FCC approval.
CD - See Carrier Detect.
CDMA - This stands for Code Division Multiple Access and refers to a multiple-access scheme where stations use wide-spectrum modulations and orthogonal codes to reduce the chance of interfering 3 with each other.
Central Office (CO) - This is a place where lines are joined to switching equipment (which control connections).
Channel - A frequency band, 6 MHz wide in the US, in which a specific broadcast signal is transmitted. Channel frequencies are determined 4 in the US by the Federal Communications Commission (FCC).
Character - This is a letter, numeral, or symbol.
Characters per Second (CPS) - This is the number of characters that can be sent over the phone lines in 1 second.
Chat - A mode that allows two or more people to communicate with each other in real time over a network using modems 5.
Checksum - This is the sum of a group of data items that is used for error checking. Received information packets must have the same number of bits present during the initial transmission.
Chip - This is the physical structure of an integrated circuit.
Circuit - This is an electrical device that provides a path for electrical current to flow, or more generally, it is a journey or route all the way around a particular place or area.
Circular Polarization - Some satellites transmit both right-hand rotating and left-hand rotating signals simultaneously 6 on the same frequency. This technique effectively doubles the channel carrying capacity of the satellite.
- The workman fixed the antenna to the roof of the house.工人把天线固定在房顶上。
- In our village, there is an antenna on every roof for receiving TV signals.在我们村里，每家房顶上都有天线接收电视信号。
- He reached the apex of power in the early 1930s.他在三十年代初达到了权力的顶峰。
- His election to the presidency was the apex of his career.当选总统是他一生事业的顶峰。
- I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
- He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
- Yes, floppy day, as did 9600 baud dial up modems. 是的，当时软件是最主要的工具，还有9600波特拨号调制解调器。 来自互联网
- Extra settings for configuring BAD modems that cannot identify proper disconnect tone. 额外的设置，配置不好的调制解调器不能确定适当的断开的语调。 来自互联网
- The radar beam can track a number of targets almost simultaneously.雷达波几乎可以同时追着多个目标。
- The Windows allow a computer user to execute multiple programs simultaneously.Windows允许计算机用户同时运行多个程序。