motion sensing alarm
... 运动机件：moving parts 运动传感警报器：motion sensing alarm 允许烧除的地区：allowable burned area ...
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更小一点如盐粒大小的传感器可以被掺入油漆中，把整个表面变成无线传感器——可以侦测物体的运动或是担当烟雾警报器、安全系统。
Still smaller versions the size of specks of salt can be added to paint, turning entire surfaces into wireless sensors that can detect motion or act as smoke alarms or security systems.
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