Intelligent infra-red remote control.

智能红外线遥控器控制。

It's hard to get attacks against the cloud infra-structure.

这种攻击对云基础设施很难奏效。

Intrusion detection - Active infra-red detectors - Specific standard.

侵入检测。主动式红外线检测器。专用标准。

In the case of lidar, the waves are in the form of an infra-red laser beam.

至于激光雷达，电磁波是以红外激光束的形式发射的。

But there is a lot of infra-red in the spectrum, so it seems silly to ignore it.

然而太阳光谱中有大量的红外线，如不加以利用未免有些愚蠢。