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microwave doppler detectors
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microwave doppler detectors
Encyclopedia
工学
入侵探测器
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microwave doppler detectors
微波多普勒探测器
由于人体移动使反射的微波辐射频率发生变化而产生报警状态的一种探测器,因其工作原理基于多普勒效应而得名。又称雷达式微波探测器。
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systematic statistic
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systematization of laws
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Systematized Collection of Litera- ture in Jin Dynasty
Systematized Collection of Literature in Jin Dynasty
systematized theoretical framework of public administration
systematizied design
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system audit
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system average interruption duration
system average interruption frequency
system balance
system bath model
system-bath model
System Biology
system biology
system biology of medicinal Resource
system boundary
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