PIR造句

The Design of PIR Thermometer Based on ARM Microprocessor;

比如，PIR为350的人表示他们的收入是贫困线的350%。

Alternatively passive motion sensors, also known as PIR (passive infrared) sensors are typically used on security lights which detect the heat of a human body.

被动式运动传感器，也称为PIR（被动式红外线）传感器，通常用于能够检测人体热量的安全灯。