1·Unlike other mice, mice that are genetically incapable of making these particular cells do not show elevated levels of nitrates when infected with bacteria.
与其他老鼠不同的是，在基因上无法制造这些特殊细胞的老鼠在感染细菌时不会表现出硝酸盐水平的升高。
2·Nitrates are used as preservatives in food processing.
硝酸盐在食品加工中被用作防腐剂。
—— 《柯林斯英汉双解大词典》
3·Nitrates are chemicals that occur naturally in water and the soil.
硝酸盐是水和土壤里天然存在的化学物质。
—— 《柯林斯英汉双解大词典》
4·The major components of PM are sulfate, nitrates, ammonia, sodium chloride, carbon, mineral dust and water.
它的主要组成成分是硫酸盐、硝酸盐、氨、氯化钠、碳、矿物粉尘和水。
5·It's the nitrites and nitrates in processed meats such as hot dogs that are linked with all sorts of cancers.
诸如热狗之类的加工肉类中的硝酸盐和亚硝酸盐才是真正与各种癌症有关的因素。