无线电发射机

Guglielmo Marconi, recognizing the possibility of using these waves for a wireless communication system, gave a demonstration (1895) of the wireless telegraph, using Hertz's spark coil as a transmitter and Edouard Branly's coherer (a radio detector in which the conductance between two conductors is improved by the passage of a high-frequency current) as the first radio receiver.

Guglielmo Marconi，认可使用这些波浪的可能性为一个无线通信系统，给了一次示范(1895)无线通信机，使用赫兹的火花卷因为发射机和Edouard Branly 的coherer (导率在二个指挥之间被高频率潮流段落改进)的一台无线电探测器如同第一无线电接收机。

Radio beacon transmitter, hidden in or on a vehicle for use with radio tailing equipment.

无线电信标发射机，隐藏在车辆内侧或外侧，用于无线嵌入设备。

Content summary : The cell-phone is just like a small-scale radio receiver and transmitter.

手机就像是一个小型的无线电接收机和发射机。

The tractor and Radio Control transmitter that allows the operator to control its movements.

拖拉机和无线电控制发射机，让营办商控制其运动。

She used a cell phone several hours each day, and the room in which she worked contained transmitters that emitted radio-frequency radiation, she said.

她用手机几个小时，每天的房间内，她载发射机发出的无线电频率辐射，她说。

Bands, radio transmitters, or other identifying devices can be attached to them, but this of course requires catching live crows, who are among the wariest and most untrappable of birds.

人们当然可以把脚环、无线电发射机和其他识别装置缚在乌鸦身上，但这却要满足一个前提，那就是活抓乌鸦——但这却是最为机警、最难抓到的鸟类之一。

Valdemar Poulsen demonstrates the first arc radio transmitter for high-quality voice transmission in his Palo Alto laboratory.

1903年，丹麦人波尔森展示了首个弧无线电发射机的高品质语音传输在他的Palo Alto实验室。

Your mobile device is a radio transmitter and receiver.

您的移动设备是无线电发射机和接收机。

An early radio transmitter using a discharge across a spark gap as the source of its power.

通过火花隙放电作为其电源的早期无线电发射机。

Radio transmitters are allowed for reasons of safety and for communication between the team leader and his pilots.

无线电发射机之允许，是基於安全的理由，及领队和他的飞行员之间的沟通。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。