VOA常速英语,以其地道的发音、丰富的时事内容,成为提升英语听力与理解能力的关键途径。它不仅让全球听众即时了解世界动态,还促进了跨文化交流,对于英语学习者而言,是不可或缺的听力训练资源,对提升语言综合能力至关重要。让我们一起走进今天的VOA常速英语听力练习:辐射冷却技术。
英文原文
They look like solar panels,but the system being installed on this department store roof will work quite differently,by sending heat into deep space, it will help cool the store below.
它们看起来像太阳能板,但安装在这家百货公司屋顶的系统将大不相同,通过将热量送入深空,它将有助于冷却下方的商店。
The technology takes advantage of radiative cooling,a natural phenomenon that requires no additional energy input.
这项技术利用了辐射冷却,这是一种不需要额外能量输入的自然现象。
In day time,the sun's heat is mostly absorbed by objects on earth and the atmosphere,but some heat in the infrared range still escapes,as if through a narrow window to cold outer space.
在白天,太阳的热量主要被地球上的物体和大气层吸收,但红外范围内的部分热量仍然会逃逸,就像通过一扇狭窄的窗户进入寒冷的太空。
The film covering these panels is engineered to channel heat through that window,even on the hottest day.
覆盖这些面板的薄膜被设计用来引导热量通过这个“窗口”,即使在最热的日子里也是如此。
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