The term photochemical oxidants refers to the secondary pollutants formed in photochemical smog.

光化学氧化剂这一词是指在光化学烟雾中生成的次生污染物.

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Later, it was known as photochemical smog of this pollution.

后来, 它被称为光化学烟雾的污染.

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Generally hydrocarbons are recognized as a component and promoter of photochemical smog.

碳氢化合物通常被认为是光化学烟雾的成分诱因之一.

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Photochemical smog is found in many large cities all over the world.

在全世界很多大城市中都发现有光化学烟雾.

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And so on can lead to photochemical smog.

可以引起光化学烟雾等.

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Los Angeles smog is called photochemical smog.

所以洛杉矶烟雾叫做光化烟雾.

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