High thin clouds are very transparent to solar radiation, like clear air.

太阳辐射可以轻易地通过高空薄云层，就像通过空气一样。

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High thin clouds contribute to heating while low thick clouds cool Earth.

高而薄的云层有助于升温，而低而厚的云层使地球冷却。

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Autumn to vegetation Xiao Shu, open thin clouds.

秋来草木萧疏，开高云淡。

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Outside my hotel room window, a thin layer of clouds has stolen over the valley, diffusing the light and making it difficult to see where the sun really is.

CNN: ASIANOW - TIME Asia | Davos 2000: Hail the New Economy

The day was gray and moist, with low clouds weighing on the rooftops and a thin fog floating below.

NEWYORKER: Waiting

Funnel clouds look like cone-shaped or thin rope-like protuberances which hang down from the cloud base, and often do not last very long.

BBC: Funnel clouds, twisters, tornados: What are they?