紅錄燈如果都這樣設計就安全多了!
PV Pulse: Upstream PV Data Service - GTM Research 這是日本街頭的紅綠燈,這樣的設計明顯減少不少誤撞行人的事故, 的確是非常好的設計!Updated monthly, GTM Research's PV Pulse tracks the metrics and trends industry players need to stay ahead of the fast- moving PV supply market, in the form ......
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