Gōng / chǎng / cóng / lín / kuàng / zhōng / tí / qǔ / lín / yuán / sù / yòng / yú / shēng / chǎn / huà / féi

工厂从磷矿中提取磷元素，用于生产化肥。

The factory extracts phosphorus from phosphate ore to produce fertilizer.