radio beam

单词radio beam

基本解释

na.: 无线电射束
网络: 无线电波束；无线电射线；无线电导航波柱

英汉解释

• 无线电射束

例句

• Like the searchlight beam, the radio beam cannot be made very sharp; it tends to spread.

  无线电射束也象探照灯的光束一样，是不能高度集中的；它总要散开。

• it is far from simply a radio beam passing through a vacuum at "the speed of light" .

  这远不像一束无线电波“以光速”穿过真空层那样简单。

• ironically , the detailed reasons as to how the radio beam is produced may not be important astronomically.

  具有讽刺意义的是，产生射电波束的详细原因在天文上，这也许并不重要。

• Notice that in both these examples the radio beam generated for one cell-phone user does not reach the other.

  注意，在上述两例中，针对其中一名用户产生的无线电波束，并不会抵达另一位用户的所在位置。

• And the spacecraft"s antenna will receive a powerful radio beam from Earth passing through Pluto"s atmosphere.

  来自地球的强大无线电波能穿透冥王星大气层，为太空船的天线所接收。

• Following a radio beam. Used of aircraft.

  跟随无线电波。用于指飞机

• A radio beam would extend much farther than a signal of equivalent power that is broadcast in all directions.

  相较于具有相同能量、但朝著各个方向播送的讯号，聚集成束的无线电波可传递得更远。

• beam, the radio beam cannot be made very sharp;

  无线电射束也象探照灯的光束一样，是不能高度集中的；

• Self-focusing and defocusing of narrow radio beam in lower ionosphere

  无线电窄波束在低电离层中的聚焦和散焦