paraffin

简明释义

英[ˈpærəfɪn]美[ˈpærəfɪn]

n. 石蜡；[有化]链烷烃；硬石蜡

vt. 用石蜡处理；涂石蜡于……

复 数 p a r a f f i n s

英英释义

单词用法

同义词

反义词

例句

1.Representative pieces of periprosthetic tissue were embedded in paraffin blocks for routine sectioning and staining with hematoxylin and eosin.

假体周围组织的典型地区分别嵌入常规切片和苏木精和伊红染色石蜡块。

2.There will be melted into liquid paraffin after brushing the rockery, the effect is significant.

也有将石蜡化成液体后涂刷塑石假山的，效果也显著。

3.Thus the microencapsulated paraffin could not be used in the presence of aromatic solvent.

因此，该石蜡微胶囊不能用于芳香族溶剂存在的场合。

4.The fire blazed up when he added paraffin .

他加了一些煤油，火就燃烧起来了。

5.The new design is helpful for the improvement of paraffin section 's quality.

结合教学实践发现改良方案有助于提高石蜡切片的质量。

6.Paraffin, however, is not a good phlegmatizing agent .

石蜡并不是良好的钝感剂。

7.The candle was made of paraffin.

这支蜡烛是用石蜡制成的。

8.In the lab, we used paraffin to embed tissue samples.

在实验室，我们使用石蜡来包埋组织样本。

9.Many beauty products contain paraffin for moisturizing.

许多美容产品含有石蜡以保湿。

10.The paraffin wax helps to seal the surface of the wood.

这层石蜡蜡有助于密封木材表面。

11.He lit the paraffin lamp during the power outage.

停电时，他点燃了石蜡灯。

作文

In the world of chemistry and materials science, paraffin is a term that often comes up in discussions about hydrocarbons and their applications. Paraffin refers to a group of saturated hydrocarbons that are typically found in a solid state at room temperature. These compounds are primarily derived from petroleum and are known for their waxy texture and lack of reactivity, making them suitable for a variety of uses. One of the most common forms of paraffin is paraffin wax, which is widely used in candle making, cosmetics, and even food preservation. The versatility of paraffin wax can be attributed to its unique properties. It has a low melting point, usually between 46 to 68 degrees Celsius, which allows it to easily melt and reshape when heated. This characteristic makes paraffin wax an ideal material for creating candles, as it can hold fragrances and colors well, enhancing the overall aesthetic and olfactory experience. Additionally, paraffin wax is often used in the production of various types of candles, including votive, pillar, and tealight candles. Beyond its use in candles, paraffin has several other applications in different industries. In the field of cosmetics, paraffin is commonly found in lotions and creams due to its moisturizing properties. It acts as an emollient, helping to soften and soothe the skin. Moreover, paraffin is also utilized in therapeutic treatments, such as paraffin wax baths, which are used to alleviate pain and stiffness in joints and muscles. In addition to its cosmetic uses, paraffin plays a significant role in food preservation. When applied to fruits and vegetables, paraffin creates a protective barrier that helps to retain moisture and prolong shelf life. This application is particularly beneficial for items like apples and cheeses, which can benefit from the sealing properties of paraffin. However, it is important to note that while paraffin has many advantages, there are also some concerns regarding its safety and environmental impact. The production of paraffin wax involves the refining of crude oil, which raises questions about sustainability and pollution. Furthermore, some studies suggest that burning paraffin candles can release potentially harmful chemicals into the air, leading to indoor air quality issues. Therefore, it is essential for consumers to consider these factors when choosing products that contain paraffin. In conclusion, paraffin is a fascinating compound with numerous applications across various industries. Its unique properties make it a valuable material for candle making, cosmetics, and food preservation. However, as with any substance derived from petroleum, it is crucial to weigh the benefits against the potential environmental impact. As we continue to explore alternatives and more sustainable practices, the future of paraffin and its role in our daily lives remains an important topic of discussion.

在化学和材料科学的世界中，paraffin是一个常常出现在关于烃及其应用的讨论中的术语。paraffin指的是一组饱和烃，通常在室温下呈固态。这些化合物主要来源于石油，以其蜡状质地和缺乏反应性而闻名，使其适用于多种用途。其中最常见的形式是石蜡，广泛用于蜡烛制造、化妆品甚至食品保存。 paraffin蜡的多功能性可以归因于其独特的性质。它的熔点较低，通常在46到68摄氏度之间，这使得它在加热时容易融化和重塑。这一特性使得paraffin蜡成为制作蜡烛的理想材料，因为它能够很好地保持香味和颜色，增强整体的美学和嗅觉体验。此外，paraffin蜡还常用于生产各种类型的蜡烛，包括投票蜡烛、柱形蜡烛和茶蜡蜡烛。 除了在蜡烛中的用途外，paraffin在不同产业中还有几种其他应用。在化妆品领域，paraffin常见于乳液和面霜中，因其保湿特性而受到青睐。它作为一种柔润剂，有助于软化和舒缓皮肤。此外，paraffin还用于治疗性治疗，如石蜡浴，这种治疗方法用于缓解关节和肌肉的疼痛和僵硬。 除了其化妆品用途，paraffin在食品保存中也扮演着重要角色。当涂抹在水果和蔬菜上时，paraffin形成一个保护屏障，有助于保持水分并延长保质期。这一应用对苹果和奶酪等物品尤为有益，这些物品可以从paraffin的密封特性中受益。 然而，需要注意的是，虽然paraffin有许多优点，但也存在一些关于其安全性和环境影响的担忧。paraffin蜡的生产涉及原油的精炼，这引发了可持续性和污染的问题。此外，一些研究表明，燃烧paraffin蜡烛可能会释放潜在有害的化学物质到空气中，从而导致室内空气质量问题。因此，消费者在选择包含paraffin的产品时，考虑这些因素至关重要。 总之，paraffin是一种有趣的化合物，在各个行业中有着众多应用。其独特的性质使其成为蜡烛制造、化妆品和食品保存的宝贵材料。然而，正如任何来源于石油的物质一样，权衡好处与潜在的环境影响至关重要。随着我们继续探索替代方案和更可持续的实践，paraffin及其在日常生活中的作用将仍然是一个重要的话题。