passive infrared detector meaning in English

被动红外探测器

Alarm systems - intrusion systems - requirements for passive infrared detectors
报警系统.入侵系统.无源红外线探测器的要求
Alarm systems - intrusion systems - part 2 - 2 : requirements for passive infrared detectors ; german version clc ts 50131 - 2 - 2 : 2004
警报系统.侵入系统.第2 - 2部分:无源红外探测器要求
The passive infrared detectors used for automatic switching could not be adjusted finely enough for the level of control desired , and may be incompatible with the light sources
用于接通自动地面接收机终端的被动红外线探测器不能被调整足够好对于预期的控制的水平来说，并且可能与光源不能协调。