A signal flare is usually shot when troops make a sudden attack at night.

部队夜间发动突然袭击时通常发射弹。

And here is what would happen if we broadcast our existence into outer space?

我们来看看，如果向外太空发射我们的存在会怎样？

That is, any signal that's emitted today.

任何今天发射的。

Another prank involved a pocket device Wozniak built that could emit TV signals.

在另一场恶作剧中，使用到了沃兹尼亚克发明的一个可以发射电视的便携装置。

(Electrical signals firing) Or we can watch them as they sparkle with electrical activity.

（电发射声）我们也可以看着它们迸射出电的火花。

The underwater drones then fire signals, measuring variations in height down to the tiniest detail.

然后水下无人机发射，度的变化，甚至是最小的细节。

They work by sending out pulses of high-frequency sound and then interpreting the reflections as images.

机理过程是，通过发射频声波脉冲对反射进行成像解读。

I mean for a woman who is not interested you sure are sending some mixed signals.

对于一个不怎么感兴趣的女人来说，你就是在发射暧昧。

But the FAA said signal strength and the transmitting direction of 5G towers could be the problem.

但美国联邦航空局表示，5G发射塔的强度和发射方向可能是问题所在。

As the boat begins to sink, Violet creates a signal fire and a rescue boat assists them.

当船开始下沉时，维奥莱特发射了一个火，一艘救援船帮助了他们。

The European Union requires AIS broadcasts from all ships longer than 15m, while Americans spare those shorter than 19m.

欧盟要求所有长度超过15米的船只发射AIS，而美国则不要求长度小于19米的船只发射AIS。

The sturdy steel is generally used in 5G base station signal receivers, signal transmission filters and integrated circuit boards.

坚固的钢一般用于 5G 基站接收器、发射滤波器和集成电路板。

Now, this is not just conceptual: this tablet is transmitting Bluetooth, and I'm wearing the vest right now.

这个平板电脑正在发射蓝牙， 而且我正穿着这样的背心。

Mobile phones get signals from nearby radio transmitters that permit the devices to connect to frequencies to make calls and send data.

移动电话从附近的无线电发射器接收，进而使该设备连接到频率进行通话和发送数据。

The state news agency said that a launching platform set up to fire rockets into Israel had been destroyed, killing five militants.

国家新闻机构称一座用于向以色列发射火箭的发射台被毁，导致5名军人死亡。

You sure are sending some mixed signals.

你就是在发射暧昧。

You have a transmitter who is sending a signal.

您有一个正在发送的发射器。

The brain can counter it if it's not a good time to urinate by sending another signal to contract the external urethral sphincter.

通过发射另一个来控制尿道外括约肌大脑会判断现在是不是排尿的合适时机。

But keep in mind that we've been broadcasting signals into outer space since the sixties, and we have yet to receive a reply.

但是，请牢记，早在 60 年代我们就已经向外太空发射出了，并且我们还没有收到任何回复。

Crews are taking soil samples, flying drones and helicopters with transmitters to measure the electromagnetic field of the subsurface and map the layers of rock below.

工作人员正在采集土壤样本，操纵带有发射器的无人机或驾驶直升机来检地下电磁场，并绘制岩层图。