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汉语拼音：shí yán

无机化合物，成分是氯化钠，有海盐、池盐、岩盐和井盐四种。无色或白色晶体，有咸味。用于制染料、玻璃、肥皂等，也是重要的调味剂和防腐剂。通称盐。

1. 吃盐。

   《管子·地数》：“凡食盐之数，一月丈夫五升少半，妇人三升少半，婴儿二升少半。” 唐 韩愈 《论变盐法事宜状》：“百姓贫家食盐至少，或有淡食动经旬月。”

2. 无机化合物。成分是氯化钠。无色或白色结晶体，呈粒状或块状，味咸，是重要的调味剂和防腐剂，并可供药用和工业用。

   宋 沉括 《梦溪笔谈·官政》：“京师食盐，斤不足三十五钱。” 明 李时珍 《本草纲目·石三·食盐》：“此五种皆食盐也，上供国课，下济民用。海盐、井盐、鹻盐三者出于人，池盐、崖盐二者出于天。”

• The matter that the Curies had discovered was radium. It looked like ordinary salt, but was one million times more radioactive than uranium.

  居里夫妇所发现的物质就是镭，看起来它就像普通的食盐一样，而它的放射性却铀要大一百万倍。

• But for some people, including the mayor, meaningful cutbacks in how much salt they consume will also require restraint at the table.

  但是对于有些人来说，包括市长先生，在用餐是时候还需要有意识地减少食盐。

• High salt foods is an acquired taste where people get used to eating so much salt that it becomes sort of addictive.

  高盐含量的饮食是后天获得的味觉，当人们习惯于使用大量食盐的时候就会对此表现出依赖。

• European researchers said the salt reduction has led to lower blood pressure, fewer heart attacks and strokes, and lives saved.

  欧洲研究人员说减少食盐量已经导致血压水平降低，心脏病和中风发作减少，并挽救了生命。

• How much water is needed to take up a pound of salt?

  溶解一磅食盐需要多少水？

• The components of various common salts (magnesium, sodium, potassium and chloride ions, in particular) turned up in quantity.

  食盐中的各种成分（特别是镁，钠，钾还有氯离子）都有一定的数量。

• The heart association provides a list of foods, "how to cook them, what spices to use instead of salt, " she said.

  心脏协会列出了一个食物名单，如何去烹饪，用那些调味料代替食盐等等。

• As one of the major salt-producing areas, the study of Guangdong's salt distribution policy and implementation is of great significance.

  广东作为全国主要产盐区之一，其在抗战时期的食盐运销政策及实施情况有很大的研究价值。

• The main current reason of salt money was that the level of economic development was imbalance and salt owned wide social need.

  而云南地区间经济发展水平的不平衡与食盐具有广泛的社会需求，这两点无疑是盐币长期流通的最主要原因。