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-10°C -13°C at night -2°C -3°C Popular Pavement Tem.drop at noon Tem.drop 60 Cool pavement effect Cool A pavement 路面温度(℃) 0 0:00 6:00 12:00 18:00 24:00 Time RG:18: 1. 00 SC: NORM 05/09/08 RG:16: 1.00 SC NORM 14:30:56 05/09/08 14:27:54 (110.0) 60.0 55.0 T T (110.0) 600 55.0 50.0 50.0 450 45.0 45/4 400 400 35.0 350 30.0 30.0 25.0 25.0 20.0 (-30.0) 20.0 (-30.0) Porous asphalt pavement : 52.7°C) Cool pavement : 49.0°C) Tem. rise of pants surface after 10min. ( -4°C) 8

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