1·We need to cut nitrate levels in water.
我们需要降低水中的硝酸盐含量。
—— 《牛津词典》
2·High levels of nitrate occur in the Midwest because of the heavy use of fertilizers.
因为大量使用化肥，中西部地区的硝酸盐含量很高。
—— 《柯林斯英汉双解大词典》
3·The peroxyacetyl nitrate is an important atmospheric pollutant.
过氧乙酰硝酸盐是一种重要的大气污染物。
4·Nitrate and water-soluble organic nitrogen were migrated with deionised water migrating and increased subsoil fertility.
硝酸盐和水溶性有机氮随着去离子水的迁移而迁移，并增加了土壤的肥力。
5·The growth of plankton in the sea is always limited by something. It may be light, or a familiar nutrient such as nitrate or phosphate.
海洋浮游藻类的生长总是受到一些东西的限制，这些东西可能是光，也可能是相似的 营养物质比如硝酸盐或者磷酸盐。