Fogs cannot form unless the cooling is very marked. This is because small drops tend to evaporate again more easily than the large drops. It is therefore very difficult for any drops to begin to form at all unless they form immediately into

large drops, as they would if the cooling were clearly marked. The dust particles in ordinary air act as a very convenient beginning for the drops, because they are already a sufficient size for the drops formed on them to avoid re-evaporation. This explains why fogs and mists are much more common and more persistent near large manufacturing towns than in the clear air of the countryside.

해석

Fogs cannot form unless the cooling is very marked.

기온이 현저하게 서늘해 지지 않으면 안개는 형성되지 않는다.

※ marked

눈에 띄는, 현저한

This is because small drops tend to evaporate again more easily than the large drops.

왜냐하면 작은 물방울이 큰 물방울 보다 쉽게 증발해 버리기 때문이다.

※ evaporate

증발시키다

It is therefore very difficult for any drops to begin to form at all unless they form immediately into large drops, as they would if the cooling were clearly marked.

따라서 기온이 현저하게 서늘해지면 그렇듯이 즉시 큰 물방울을 만들지 않으면 어떤 물방울도 만들기가 어렵게 된다.

The dust particles in ordinary air act as a very convenient beginning for the drops, because they are already a sufficent size for the drops formed on them to avoid re-evaporation.

공기중의 먼지소립자가 물방울 형성을 유도하는 최초의 역할을 한다. 왜냐하면 이들은 이미 크기가 충분하여 재증발을 막을 수 있는 물방울을 주위에 형성하기 때문이다.

※ dust particle

먼지소립자

※ re-evaporation

재증발

This explains why fogs and mists are much more common and more persistent nearly large manufacturing towns than in the clear air of the countryside.

어째서 안개가 시골의 맑은 공기에서 보다 큰 공업도시 근처에 더 흔하고 더 끈질긴가 하는 것은 바로 이때문이다.

※ mist

(fog보다) 엷은 안개

※ persistent

끈질긴