aIn existing sprinklered buildings hard-wired 110-volt local smoke detectors may be substituted. 在存在被装喷水器的大厦硬联线一百伏特的地方烟检测器也许被替代。[translate] aSince the electron transfer reaction is much faster than the diffusion of the monomer from the electrolyte, it obvious shows ...
Hidden cameras range from$50 to $250each and$100 to $400installed. They differ from other camera types in that they usually do not physically look like cameras. Hidden cameras are often either disguised as other appliances like smoke detectors or clocks or are exceptionally small to avoid detec...