光化学

光化學

guānghuàxué

noun

Meanings

HSK 5

光化学反应通常需要紫外光。

Guānghuàxué fǎnyìng tōngcháng xūyào zǐwàiguāng.

Photochemical reactions usually require ultraviolet light.

HSK 5

光化学烟雾对城市空气污染严重。

Guānghuàxué yānwù duì chéngshì kōngqì wūrǎn yánzhòng.

Photochemical smog is a serious form of urban air pollution.

HSK 7-9

光化学是化学的一个重要分支。

Guānghuàxué shì huàxué de yígè zhòngyào fēnzhī.

Photochemistry is an important branch of chemistry.

memory

Read it left to right: 光 (light) + 化学 (chemistry) = 'light chemistry', i.e. photochemistry, the study of how light drives chemical reactions.

光 guāng

化 huà

学 xué