sodium

简明释义

英[ˈsəʊdiəm]美[ˈsoʊdiəm]

n. 钠（一种化学元素，符号为 Na）

adj. （发出橙色强光的）钠光的

英英释义

单词用法

同义词

反义词

例句

1.We use thymol-sodium hypobromite as chromogenic reagent.

我们使用百里酚钠次溴酸钠作为显色剂。

2.It is a naked electron and is a sodium positive ion.

它是个裸电子，是钠正离子。

3.The purpose of this study was to discuss the mechanism of sodium selenate in electrodeposition of zinc-manganese alloy.

本研究旨在探讨硒酸钠在锌锰合金电沉积中的作用机理。

4.The effect of content of water on the yield of 2-phenylbenzmide by using sodium amide was studied.

研究了水分含量对氨基化钠制备2-苯基苯甲酸胺收率的影响。

5.Sodium gualenate was prepared from guaiazulene.

以愈创蓝油烃为原料合成呱仑酸钠。

6.Foods that contain only medium levels of sodium are bread, cakes, milk, butter, and margarine.

含钠量仅为中等水平的食物有面包、蛋糕、牛奶、黄油和人造黄油。

7.Salt is primarily composed of sodium and chloride.

盐主要由钠和氯组成。

8.Many processed foods contain added sodium for flavor.

许多加工食品含有添加的钠以增加风味。

9.The body needs a certain amount of sodium to function properly.

身体需要一定量的钠才能正常运作。

10.Doctors often recommend reducing sodium intake for heart health.

医生通常建议减少钠的摄入以保护心脏健康。

11.High levels of sodium in the diet can lead to hypertension.

饮食中高水平的钠可能导致高血压。

作文

Sodium, represented by the chemical symbol Na, is an essential element found in many compounds and plays a crucial role in various biological processes. It is classified as an alkali metal and is highly reactive, especially with water. In its natural state, sodium is not found in its elemental form but rather in compounds such as table salt (sodium chloride). This compound is vital for human health, as it helps to regulate fluid balance in the body. The importance of sodium（钠）cannot be overstated. It is necessary for maintaining proper nerve function and muscle contraction. When we consume foods containing sodium（钠）, it dissociates into ions that are used by our cells to transmit electrical signals. This is particularly important for the functioning of neurons, which rely on sodium（钠）ions to propagate nerve impulses. Without adequate sodium（钠）levels, our muscles may not contract properly, leading to cramps and other complications.Moreover, sodium（钠）plays a significant role in regulating blood pressure. It helps to control the amount of water retained in the body. High levels of sodium（钠）can lead to increased blood volume, which may raise blood pressure and put extra strain on the heart. This is why many health organizations recommend limiting sodium（钠）intake, especially for individuals with hypertension or cardiovascular issues.Despite its importance, it is essential to consume sodium（钠）in moderation. The average person consumes far more sodium（钠）than necessary, primarily through processed foods that are often high in salt. Fast food, canned goods, and snacks are notorious for their high sodium（钠）content. Therefore, being mindful of our sodium（钠）intake can contribute to better overall health.In addition to its biological significance, sodium（钠）has various industrial applications. It is used in the production of glass, paper, and textiles, and plays a vital role in the chemical industry. Sodium compounds, such as sodium bicarbonate (baking soda) and sodium hydroxide (lye), are widely used in households and industries alike.In conclusion, sodium（钠）is an essential element that serves multiple functions in both biological and industrial contexts. While it is crucial for our health, moderation is key to preventing adverse effects associated with excessive consumption. Understanding the role of sodium（钠）in our diet and its various applications can help us appreciate its significance in our daily lives.

钠，化学符号为Na，是一种重要的元素，存在于许多化合物中，并在各种生物过程中发挥着至关重要的作用。它被归类为碱金属，尤其与水反应剧烈。在自然状态下，钠并不以元素形式存在，而是以氯化钠（食盐）等化合物的形式存在。这种化合物对人类健康至关重要，因为它有助于调节体内的液体平衡。sodium（钠）的重要性不容小觑。它对于维持适当的神经功能和肌肉收缩是必需的。当我们摄入含有sodium（钠）的食物时，它会解离成离子，被我们的细胞用来传递电信号。这对于神经元的功能尤其重要，因为神经元依赖于sodium（钠）离子来传播神经冲动。如果缺乏足够的sodium（钠）水平，我们的肌肉可能无法正常收缩，导致抽筋和其他并发症。此外，sodium（钠）在调节血压方面也发挥着重要作用。它有助于控制体内保留的水分。高水平的sodium（钠）可能导致血容量增加，从而可能提高血压，并给心脏带来额外的压力。因此，许多健康组织建议限制sodium（钠）摄入，特别是对于高血压或心血管问题的人群。尽管sodium（钠）很重要，但适量摄入是必要的。普通人摄入的sodium（钠）远超所需，主要通过那些通常含盐量较高的加工食品。快餐、罐装食品和零食以其高sodium（钠）含量而臭名昭著。因此，关注我们的sodium（钠）摄入可以促进更好的整体健康。除了生物学上的重要性，sodium（钠）还有各种工业应用。它被用于生产玻璃、纸张和纺织品，并在化学工业中发挥着重要作用。钠化合物，如碳酸氢钠（小苏打）和氢氧化钠（火碱），在家庭和工业中广泛使用。总之，sodium（钠）是一种重要的元素，在生物和工业环境中都发挥着多重功能。虽然它对我们的健康至关重要，但适度是防止因过量消费而引起的不良影响的关键。了解sodium（钠）在我们饮食中的作用及其各种应用，可以帮助我们更好地欣赏它在日常生活中的重要性。