“passive infrared detectors”的概念、定义、翻译、参考文献-科学参考

单词	passive infrared detectors
释义	passive infrared detectors Encyclopedia 工学入侵探测器释 passive infrared detectors被动红外探测器通过探测目标移动时红外辐射能量的变化而产生触发并发出报警信号的设备，由光学系统、热释电传感器、放大电路、信号处理电路、输出电路组成。探测器本身不发射任何能量，只被动接收、探测来自环境的红外辐射。
随便看	vegetation coverage vegetation cover and biological factor vegetation ecological climatology vegetation ecological series vegetation ecology vegetation evolution Vegetation Formation Vegetation Formation Group vegetation geochemical survey vegetation-habitat classification by Shenxiu Jia vegetation index vegetation investigation vegetation map Vegetation Map of the People's Republic of China（1︰1000000） vegetation mattress vegetation measures for soil and water conservation Vegetation of China vegetation pattern vegetation patterns vegetation physiognomy vegetation primary succession vegetation productivity vegetation quantitative characteristics vegetation regionalization vegetation regionalization in China

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