wireless

• 形容不需要物理导线或电缆连接，通常通过无线电波或其他电磁信号传输信息或能量的技术或设备。

Describes technology that operates without physical wires, typically using radio waves or other electromagnetic signals.

1. No wiresA2formalIT

   Operating or communicating without the use of physical wires or cables.

   无线的

   • The wireless headphones connect to your phone via Bluetooth.
   • We installed a wireless network in the office.
   • Wireless charging pads are becoming more popular.

   同义词cordlessradio

   反义词tetheredwired

• 指利用无线电波进行通信的方式或技术，也指无线电接收机等接收和放大无线电信号的设备，或基于电磁波传输的通信系统。

A noun referring to a medium for communication, transmission by radio waves, an electronic receiver that detects and demodulates and amplifies transmitted signals, or a communication system based on broadcasting electromagnetic waves.

1. Wireless communication mediumB1formalIT

   A medium for communication that uses radio waves instead of physical cables.

   无线通信

   • The office upgraded to wireless for better connectivity.
   • Wireless has become the standard for home internet.
   • Many devices now rely on wireless for data transfer.

   同义词etherradio

2. Transmission by radio wavesB1formalIT

   The method of transmitting signals through the air using electromagnetic waves.

   无线电传输

   • The invention of wireless revolutionized long-distance communication.
   • Wireless transmission allows for mobile phone calls.
   • Radio stations use wireless to broadcast their programs.

   同义词broadcastradioradiocommunicationwireless telegraphy

   反义词cablelinewired

3. Radio receiverB1formalbritishIT

   An electronic device that detects, demodulates, and amplifies transmitted radio signals for audio output.

   无线电接收机

   • He turned on the wireless to listen to the news.
   • The old wireless sat on the shelf, still working.
   • She adjusted the wireless to find a clearer station.

   同义词radioreceiver

4. Radio communication systemB1formalIT

   A communication system based on broadcasting electromagnetic waves, such as radio or Wi-Fi.

   无线通信

   • The ship's wireless sent a distress signal.
   • Early wireless systems used Morse code.
   • Modern wireless networks cover entire cities.

   同义词radio