Los Angeles is notorious for its smog.

洛杉矶烟雾是出名。

The river appeared as if enveloped in smog.

那条河好像笼罩在烟雾之中。

We were prevented by heavy smog from seeing anything.

浓雾使我们看不到任何东西。

The function of hydrocarbons and nitrogen oxides in photochemical smog formation and the formative process of ozone and peroxyacetyl nitrate are discussed.

介绍氮氧物、碳氢合物在形成学烟雾中作用和臭氧、过氧乙酰硝酸酯产生过程,并介绍学烟雾形成机理。

Afterwards " fuliginous model " , " photochemical smog " after pollution, modern is being entered with " indoor air is polluted " the 3rd generation that is a mark pollutes period.

继“煤烟型”、“学烟雾型”污染后，现代人正进入以“室内空气污染”为标志第三代污染时期。