radio frequency
射频
常用释义
英式发音
美式发音
基本释义
- 无线电频率：电磁波频率的一种，其范围从低于3千赫兹延伸到约300吉赫兹，包括用于通信信号（如广播、电视广播、手机和卫星传输）或雷达信号的频率。
例句
-
1·Many of them were using a pea-sized speaker to receive the answers over a radio frequency.很多人借由一个豌豆大小的耳机来通过无线电频率接收答案。
-
2·Having the antenna at the bottom means less radio frequency waves are flooding the sensors.将天线安置在底部意味着传感器会探测到最少的电磁波。
-
3·But some consumers offered ideas on how to limit exposure to radio frequency waves... which includes talking a bit less.但是一些消费者提出限制接触无线电波的方法，其中包括少说话。
-
4·Underlying the Internet of Things are technologies such as RFID (radio frequency identification), sensors, and smartphones.物联网背后的技术包括RFID（无线射频识别），传感器和智能手机。
-
5·ALOHAnet's nodes all transmitted data to a central hub on the same radio frequency, and received data on a second frequency.ALOHAnet的所有节点将数据以相同射频传输至一个中央线路集成器，再以另一种射频接收这些数据。
-
6·Also, American Systems will support integrated circuit design and testing for analog, digital and radio frequency applications.另外，美国系统将支持集成电路设计和模拟测试，数字和射频应用。
-
7·Her 73 filed U.S. patents range from networking, Web, security, privacy, multimedia, wireless, pervasive devices, to radio frequency ID.她申请的73项u.s.专利涵盖的范围从网络、Web、安全、保密、多媒体、无线、普遍设备到无线电频率ID。
-
8·But when scientists started looking at the data overlaid onto a map, they saw dark spots of fuzz, indicating radio frequency interference.但当科学家们开始将这些数据分布在地图上观察时，他们发现了一些模糊的黑点，表示无线电频率的扰动。
-
9·BAE Systems will develop a new radar warning receiver prototype that can identify radio frequency and communications activity in real time.BAE系统公司将开发一种新型雷达预警接收机原型，该原型能实时识别无线电频率和通信活动。
-
10·IEEE standard for safety levels with respect to human exposure to radio frequency electromagnetic fields, 3 kHz to 300 GHz, IEEE Std C95.1, 2005.《电机和电子工程师学会人体接触射频电磁场安全水平标准：3千赫至300千兆赫》，IEEE Std C95.1, 2005年。