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发表于 2020-3-15 15:34:05
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zwyi 发表于 2020-3-15 10:32! D/ r/ J) V5 {
CLOUD COVER, if heavy can blockmost UV radiation. Thin or brokenclouds allow most UV rays through. ... 5 s% z$ \: S4 V
CLOUD COVER, if heavy can blockmost UV radiation. Thin or brokenclouds allow most UV rays through. Puffy, fair weather clouds deflectrays and can increase UV radiationreaching the surface.; x# f& }# y4 M
; S1 A( t; N1 _厚云遮挡大部分紫外线;薄云则大部分紫外线都能穿透过去。而晴天里蓬松的云会折射紫外线,增加到达地面的辐射量。
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谢谢,学习了!1 O5 x) X3 C7 `, T' Y
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