alumina production的用法和样例：
例句
- The synthetic polymeric flocculant is an important additive for the red mud separation process in alumina production.
摘要合成高分子絮凝剂是氧化铝生产过程赤泥分离工序的重要添加剂。 - At the same time, the rapid decline in sea freight imports a significant drop in the prices of bauxite, alumina production costs have also decreased accordingly.
同时，海运费快速下降导致进口铝土矿价格跌幅显著，氧化铝生产成本相应也明显下降。
