| 单词 | 无线 |
| 释义 | 〔roadkill〕"Many radio rightists betray a truculent nostalgia for the old foes who became their roadkill"(Richard Corliss)“对那些已被击败的老对手，接受无线访问的右派政客不再激烈反对”(理查德·考利斯)〔heterodyne〕To combine (a radio-frequency wave) with a locally generated wave of different frequency in order to produce a new frequency equal to the sum or difference of the two.外差：把（一个无线电频率波）与另一个频率不同的局部产生的电波层混合，以产生相当于原来两个的总和或差拍的新频率〔radio〕A complex of equipment capable of transmitting and receiving radio signals.无线收发装置：能够传送和接收无线电信号的一套设备〔squelch〕An electric circuit that cuts off a radio receiver when the signal is too weak for reception of anything but noise.静噪电路：当信号太微弱而只能收到杂声时断掉无线接收器的电子电路〔wireless〕A radio telegraph or radiotelephone system.无线电报系统，无线电话系统〔megahertz〕One million cycles per second. Used especially as a radio-frequency unit. Also called megacycle 百万赫：每秒一百万周。尤用作无线电频率的单位 也作 megacycle〔radome〕A domelike shell transparent to radio-frequency radiation, used to house a radar antenna.雷达天线罩：有顶构造，可以让无线电频率辐射穿过，用于隐蔽雷达天线〔scanner〕A receiver that continuously broadcasts signals it detects from specified radio frequencies:扫描天线：一种接收器，可连续不断地播送针对特定无线电频率所检波到的信号：〔radio〕The wireless transmission through space of electromagnetic waves in the approximate frequency range from 10 kilohertz to 300,000 megahertz.无线电：电磁波以约10千赫至300,000兆赫通过空间的无线传送〔goniometer〕A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.无线方向探测器：一种无线电接收和指向天线系统，用来确定收到的无线电信号的角方向〔airwave〕The medium used for the transmission of radio and television signals. Often used in the plural.波段，无线电频率：传送无线电和电视信号的媒介。常用复数〔handle〕The radio operator manipulated the dials and changed the frequency. Whenmanipulate refers to people or personal affairs, it often implies deviousness or the use of improper influence or fraud in gaining an end: 无线员操作调度表盘，转换频率。 当manipulate 指人或私人事物时， 它经常暗示用不光明正大或借助不正确的影响或欺诈行为以获得结果： |
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