For instance, a thief could place the stolen phone in a signal-blocking phone case that would prevent all electromagnetic communications from reaching the device.
比如小偷只要把偷来的手机放在一个能阻绝无线信号的手机壳里，就能阻断这部手机的所有电磁通讯。
Nissan and Sharp has now integrated these electronic intelligent-key, wireless communications and electromagnetic technologies into the new handset.
日产和夏普已经在手机上采用这些电子智能钥匙，无线通讯和电磁技术。
Light is part of the electromagnetic spectrum...wouldn’t it be great to use it for wireless communications?” Professor Hass said.
而光线是电磁波谱的一部分，将其用于无线通讯不是很好吗？
应用推荐