alkalis

例句：

1. 1. The soil is rich in minerals and contains many alkalis.
   土壤富含矿物质，含有大量的碱。
2. 2. The chemical reaction between acids and bases produces alkalis.
   酸和碱之间的化学反应产生碱。
3. 3.Alkalis are used to neutralize acidic substances in industrial processes.
   碱用于工业过程中中和酸性物质。