英语词汇“定向天綫”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	定向天綫
释义	定向天綫 dìng xiàng tiān xiàn有方向性的天线，在接收机上常作环形，在雷达通讯设备上常作凹面镜形。对某些特定的方向能集中发射或接收无线电波的天线。采用定向天线可以提高通信的效率，减少干扰，改善通信品质，所以被广泛的运用于远距离定点通信、卫星通信、雷达等方面的工作。定向天线
随便看	index number of gross national domestic product index number of per capita food production Index number of physical volume index number of plasticity index number of price index-number of price index number of prices index number of production index number of quantum imports or exports index number of quantum,imports or exports index number of quantum of imports and exports index number of rank correlation index number of real wages index number of retail price index number of retail prices index number of seasonal variation index number of sensitive prices index number of station Index number of stock price index number of the amount of foreign trade index number of the price of consumer goods index number of the price of consumer's goods index number of the price of foreign trade index number of the prices of consumers goods index number of the prices of export products