Radio frequency bandwidth is limited, yet we are still trying to add more new devices to it.

无线频段是有限的，而我们仍在试图添加更多新设备。

Different tissues emit different radio frequencies which a computer turns into images.

不同组织发出截然不同的无线电频率在计算机上变成图像。

In theory, radio frequency interference from cell phones could affect certain airplane systems.

理论上，来自手机的射频干扰可能会影响某些飞机系统。

We detect the Drone primarily through radio frequency signals that are recognized by our sensors.

我们主要通过传感器识别的射频信号来探测无人机。

Conversely, some people argue that listening for ET at radio frequencies is the wrong approach.

相反，一些人认为利用无线电广播频率收听外星人是一种错误的方式。

Bossa nova uses 2D and 3D cameras and multiple sensors to track items that have radio frequency identification tags and invisible barcodes.

波萨诺瓦使用2D、3D摄像机和多传感器跟踪具有无线射频识别标签和隐形条码的商品。

Let's start off with the simplest, RF wristbands, that receive a radio frequency communicating the precise timing and colors for each band.

让我们从最简单的射频腕带开始，它接收一个无线电频率，传达每个腕带的精确时间和颜色。

Her method switched radio frequencies in a preprogrammed pattern.

她的方法以预编程模式切换无线电频率。

This dome allowed telescope operators to observe a much wider range of radio frequencies.

这个圆顶使望远镜操作员能够观察更广泛的无线电频率。

This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.

这取决于 21 厘米波长或每秒 1420 兆周的精确无线电频率。

The card reader sends out a radio frequency and when you bring the card close to the reader, the antenna picks up the signal to make the payment.

当你将卡片接近读卡器时，读卡器发出无线电频率，卡片里面的天线通过其识别的信号付费。

The department will make sure that newly launched satellites don't use radio frequencies that would interfere with existing satellites, and schedule when such new satellites can be launched.

该部门将确保新发射的卫星不会使用会干扰现有卫星的无线电频率，并计划何时发射这种新卫星。

Wi-Fi is a wireless network that uses radio frequency signals to connect to the internet or send messages between devices, without wires.

Wi-Fi 是一种无线网络， 它使用射频信号连接到互联网或在设备之间发送消息， 而无需电线。

Woo disposes of the food waste in bags bought from the city and tracks her food waste with a radio frequency ID card.

Woo 把食物垃圾装在从市里买来的袋子里，并用射频 ID 卡追踪她的食物垃圾。

Mr. Scheffer says his company produces a layer of graphene that is 80 percent pure. Graphene can be mixed into ink for printers. Stretchable parts can be printed for products such as antennas for radio frequency identification circuits.

Scheffer 先生说他的公司生产了一层纯度为 80% 的石墨烯。石墨烯可以混入打印机的墨水中。可以为射频识别电路的天线等产品打印可拉伸部件。

This is very apparent from the simulations the team has produced of what you would see if you could somehow take yourself to the centre of our galaxy and view the scene with eyes sensitive at radio frequencies.

如果你能以某种方式将自己带到我们银河系的中心并用对无线电频率敏感的眼睛观看场景，那么从团队制作的模拟中可以明显看出这一点。

Allesandro then asks, " Do you want to borrow my radio? " A " radio" (radio), for those too young to remember, is a device that receives what are called " radio frequency waves" and uses them to produce sound.

亚历山德罗接着问道， “你想借我的收音机吗？ ” “收音机” （radio），对于那些太小不记得的人来说，是一种接收所谓的“射频波” 并利用它们产生声音的设备。