zài / zào zhǐ / gōng yè / zhōng / xū yào / jiāng / mù cái / zhōng / de / mù zhì sù / qù chú / cái néng / dé dào / zhǐ jiāng

在造纸工业中，需要将木材中的木质素去除才能得到纸浆。

In the papermaking industry, lignin must be removed from the wood to obtain pulp.