shí / nǎo / yóu / shì / shēng / chǎn / duō / zhǒng / huà / gōng / chǎn / pǐn / de / zhòng / yào / yuán / liào

石脑油是生产多种化工产品的重要原料。

Naphtha is an important raw material for producing many chemical products.