urushiol

简明释义

英[ˈuːrʊʃɪˌɒl]美[ʊˈrʊʃiˌɔl;ʊˈrʊʃiˌol;ʊˈrʊʃiˌɑ

n. [有化] 漆酚；漆酌

英英释义

单词用法

同义词

反义词

例句

1.Carbon black -urushiol formaldehyde resin conductive paint has been prepared in this paper. Effects of carbon black content, grinding time and the thickness of paint were investigated.

本文研制了炭黑-漆酚醛树脂导电涂料。讨论了导电填料炭黑的含量、研磨时间以及漆膜的厚度对涂料导电性能的影响。

2.Lacquer is excised from the lacquer natural SAP, which is mainly composed of urushiol, laccase, tree resin and water.

生漆是从漆树割取的天然液汁，主要由漆酚、漆酶、树胶质及水分构成。

3.Isoamyl acetate was synthesized by urushiol resin immobilized ferric trichloride catalyst in this paper.

用漆酚树脂固载化三氯化铁高分子催化剂合成醋酸异戊酯，对催化剂进行了红外光谱表征。

4.The urushiol in the extract was removed from lacquer by autoae. The Polysaccharide btained from acetone powder were extracted by boiling water bath.

由云南镇雄采取新鲜生漆，经丙酮除去漆酚，沸水浴提取，三氯醋酸—正丁醇除杂蛋白，乙醇沉淀。

5.The kinetic and thermodynamic characteristics of adsorption of urushiol resin were systematically studied for tea -polyphenols (TP).

研究了漆酚树脂吸附茶多酚的动力学和热力学特性。

6.In this paper, study on esterification reaction catalyzed with polymer compound of urushiol and metal salt was studied.

探讨了漆酚金属盐高分子复合试剂催化酯化反应的情况。

7.The results show that diolefinic urushiol content influences film properties and is an important factor affecting the quality of chinese lacquer.

研究结果指出，双烯漆酚的含量与漆膜性能有关，是决定生漆质量的重要因素，这是生漆认识史上新的进展。

8.I had to wash my hands thoroughly after touching the plant because it contains urushiol 漆酚.

我在接触那种植物后必须彻底洗手，因为它含有urushiol 漆酚。

9.If you suspect exposure to urushiol 漆酚, it's important to seek medical advice.

如果你怀疑接触了urushiol 漆酚，重要的是寻求医疗建议。

10.Wearing gloves can help protect your skin from urushiol 漆酚 when gardening.

在园艺时戴手套可以帮助保护你的皮肤免受urushiol 漆酚的伤害。

11.Many people are allergic to urushiol 漆酚, which can cause severe rashes.

许多人对urushiol 漆酚过敏，这可能会导致严重的皮疹。

12.The rash caused by urushiol 漆酚 can take weeks to heal.

由urushiol 漆酚引起的皮疹可能需要几周才能愈合。

作文

The natural world is filled with a variety of plants and organisms, some of which can cause unexpected reactions in humans. One such substance is urushiol, a potent oil found in the sap of poison ivy, poison oak, and poison sumac. Understanding urushiol is crucial for anyone who enjoys spending time outdoors, as it can lead to allergic reactions that range from mild skin irritation to severe rashes. In this essay, we will explore what urushiol is, how it affects the body, and ways to prevent exposure to this harmful compound.Urushiol is a colorless or yellowish oily liquid that is composed of several organic compounds. It is particularly notorious for its ability to cause allergic contact dermatitis, a condition that occurs when the skin comes into contact with allergens. When someone brushes against a plant containing urushiol, the oil binds to skin proteins, triggering an immune response. This reaction can take anywhere from 12 to 72 hours to manifest, often resulting in red, itchy blisters that can be quite uncomfortable.The severity of the reaction to urushiol varies from person to person. Some individuals may only experience mild itching and redness, while others can develop extensive rashes that require medical treatment. Interestingly, once a person has been sensitized to urushiol, even a tiny amount can provoke a strong reaction. This makes it essential for those who have previously had an allergic reaction to avoid contact with poison ivy, poison oak, or poison sumac at all costs.Preventing exposure to urushiol involves education and awareness. People should be able to identify plants that contain this oil and learn how to avoid them. Poison ivy, for instance, can be recognized by its characteristic three-leaf clusters, which are often green in spring and summer but can turn red in the fall. Similarly, poison oak and poison sumac have distinct leaf shapes and growth patterns. Wearing protective clothing, such as long sleeves and pants, can also help shield the skin from accidental contact while hiking or gardening.If contact with urushiol does occur, it’s essential to act quickly. Washing the affected area with soap and water within two hours of exposure can significantly reduce the likelihood of developing a rash. However, if a rash does appear, over-the-counter treatments like hydrocortisone cream or antihistamines can help alleviate symptoms. In more severe cases, a healthcare provider may prescribe stronger medications to manage the reaction.In conclusion, understanding urushiol is vital for anyone who spends time in nature. This oily compound, found in certain plants, can lead to allergic reactions that may be uncomfortable or even debilitating. By recognizing the plants that contain urushiol and taking preventative measures, individuals can enjoy their outdoor activities without the fear of an unpleasant encounter with this allergenic oil. Awareness, education, and prompt action are key to safely navigating environments where urushiol is present.

自然界中充满了各种植物和生物，其中一些可能会对人类造成意想不到的反应。其中一种物质是urushiol，这是一种强效油脂，存在于毒藤、毒橡树和毒漆树的树液中。理解urushiol对任何喜欢户外活动的人来说都是至关重要的，因为它可能导致从轻微皮肤刺激到严重皮疹的过敏反应。在这篇文章中，我们将探讨urushiol是什么，它如何影响身体，以及如何预防接触这种有害化合物。Urushiol是一种无色或淡黄色的油性液体，由几种有机化合物组成。它以其引起过敏性接触性皮炎的能力而闻名，这是一种当皮肤接触到过敏原时发生的情况。当某人擦到含有urushiol的植物时，这种油会与皮肤蛋白结合，引发免疫反应。此反应可能在接触后12到72小时内出现，通常导致红肿、瘙痒的水泡，可能非常不适。对urushiol的反应严重程度因人而异。有些人可能只会经历轻微的瘙痒和红肿，而另一些人则可能发展出需要医疗处理的广泛皮疹。有趣的是，一旦一个人对urushiol产生过敏，即使是微量也能引发强烈反应。这使得曾经发生过过敏反应的人必须尽量避免与毒藤、毒橡树或毒漆树接触。预防接触urushiol需要教育和意识。人们应该能够识别含有这种油脂的植物，并学习如何避免它们。例如，毒藤可以通过其特征性的三叶丛簇来识别，这些叶子在春季和夏季通常是绿色的，但在秋季可能变成红色。同样，毒橡树和毒漆树也有独特的叶形和生长模式。在远足或园艺时，穿戴长袖和长裤等保护性服装也可以帮助保护皮肤免受意外接触。如果发生了与urushiol的接触，迅速采取行动至关重要。在接触后两小时内用肥皂和水清洗受影响区域可以显著减少发展出皮疹的可能性。然而，如果皮疹确实出现，非处方治疗如氢化可的松霜或抗组胺药可以帮助缓解症状。在更严重的情况下，医疗提供者可能会开处方更强的药物来管理反应。总之，了解urushiol对任何在大自然中度过时间的人来说都是至关重要的。这种存在于某些植物中的油脂化合物可能导致不适或甚至虚弱的过敏反应。通过识别含有urushiol的植物并采取预防措施，个人可以在享受户外活动时无需担心与这种过敏油的不愉快接触。意识、教育和及时行动是安全应对urushiol存在环境的关键。