Flashing strobe light can alert deaf to fire ; Alarm device allays fears of hard of hearingTrinity Hartman Staff writer
Famousforitsbeaches ( Porzliogan, Blancs sablons), le Conquet is also a small fishing port which still retains its original charm and at night you can watch a spectacular display of whiteflashinglights with the numerous lighthouses on the island of Ouessant. ...
Flashing strobe light can alert deaf to fire ; Alarm device allays fears of hard of hearing This original study was undertaken to evaluate the effectiveness of the experimental Red Strobe Traffic Signal device in reducing motor vehicle accidents a... THS Writer 被引量: 0发表: 0年 Strobe light...