radio beam

radio beam

美 　英

• 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

na.

1. 无线电射束

英英解释

n.	1. a beam of radio signals transmitted by a radio beacon for navigation purposes

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