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Abstract: The complexity of electronic-device tesTIng varies widely, ranging from the simplest type—manual tes......
灯光控制系统电路,ht Control SystemIt is easy to install a couple of infrared emitter and receiver at the entrance of y......
This is a complete alarm system with 5 independent zones suitable for a small office or home environment. It u......
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fanxiaoxi 2022-12-08
dolphin 2012-07-31
dolphin 2009-07-06
