hevea
简明释义
n. 三叶胶（一种橡胶树，产于南美洲）
英英释义
Hevea is a genus of tropical trees in the family Euphorbiaceae, known for producing natural rubber from their latex. | Hevea是大戟科中的一个热带树木属，以其乳胶生产天然橡胶而闻名。 |
单词用法
同义词
反义词
| 合成橡胶 | 合成橡胶常用于轮胎制造。 | ||
| 人造材料 | Many products are made from artificial materials to reduce costs. | 许多产品使用人造材料以降低成本。 |
例句
1.The power function equation was used to analyse the relation between different bud lengths and water-retaining capacity of Hevea planting materials with young sprouts.
本文以幂函数方程，统计分析橡胶树萌动芽种植材料的不同芽长与持水力的关系。
2.The relationship between the effect of exogenous jasmonic acid (JA) on the induction of secondary laticifer differentiation and the distribution of JA in the seedling of Hevea brasiliensis Mull.
中的分布和运输的特点，并分析其与机械伤害和外施茉莉酸对巴西橡胶树次生乳管分化的诱导效应之间的关系。
3.Metabolic disorder of Hevea leaves was characterized by a decrease in the activity of NAD—malate dehydrogenase and in the content of soluble protein.
叶片代谢失调表现为参与多种代谢反应的苹果酸脱氢酶活性下降，生活的基本物质——水溶性蛋白质含量下降。
4.If they could be turned into usable crops, they could outstrip even Hevea.
如果能将它们变成有用的作物，它们甚至会胜过橡胶树。
5.Corynespora leaf-fall disease of hevea rubber, caused by Corynespora cassiicola, is a newly found disease of hevea rubber in China, which threatens to Chinese natural rubber industry.
由多主棒孢引起的巴西橡胶棒孢霉落叶病是我国天然橡胶生产的潜在威胁。
6.Hevea anther somatic plants which combines both the advantages of seedlings and buddings, is a juvenile self-root clone that has showed a number of desirable characteristics: 1.
花药体细胞植株，集芽接树和实生树的优点于一体，是一种幼态自根无性系，表现出许多优良性状：1。生长快。
7.The recommendation project on hevea promising variety is reported during 2002-2005 in Yunnan. Thevarieties for planting on large, medium and in miniature was introduced briefly.
报道云南垦区2002 ~ 2005年橡胶树优良品种推荐方案，并对新推荐的大、中、小规模推广级品种作了简介。
8.The two-part rubber tree (Hevea brasiliensis) is a superior clone grafted on a seedling family.
在橡胶树优良有性系实生苗上嫁接优良无性系，即形成两合树。
9.In natural rubber cultivation, planting materials adopted are the high yielding Grafted Hevea Brasiliensis.
天然橡胶生产栽培中采用的种植材料是高产芽接树。
10.Farmers often plant hevea alongside other crops to diversify their income.
农民们常常将hevea与其他作物一起种植，以多样化收入。
11.In tropical regions, hevea plantations are a common sight.
在热带地区，hevea种植园随处可见。
12.The rubber industry relies heavily on hevea trees for latex production.
橡胶工业在很大程度上依赖于hevea树的乳胶生产。
13.The sap from the hevea tree is harvested to make natural rubber.
从hevea树中采集的树液用于制造天然橡胶。
14.Many products, such as tires and shoes, are made from hevea rubber.
许多产品，如轮胎和鞋子，是用hevea橡胶制成的。
作文
The world of plants is vast and varied, but few species have had as significant an impact on human life as the hevea. This tropical tree, known scientifically as Hevea brasiliensis, is primarily cultivated for its latex, which is the primary source of natural rubber. The importance of the hevea tree cannot be overstated, as it has revolutionized industries and improved the quality of life for countless individuals around the globe.Originating from the Amazon rainforest, the hevea tree was first tapped for its latex by indigenous peoples long before the arrival of European colonizers. The latex harvested from the hevea tree is a milky fluid that can be processed into rubber, which is used in a multitude of products, from tires to medical supplies. The commercialization of hevea rubber began in the late 19th century, leading to a rubber boom that transformed economies and societies.One of the most remarkable aspects of the hevea tree is its adaptability to different climates. While it thrives in the humid tropics, it has been successfully cultivated in various regions around the world, including Southeast Asia, Africa, and South America. This adaptability has allowed countries like Thailand and Indonesia to become leading producers of natural rubber, significantly impacting their economies.However, the cultivation of hevea also comes with environmental challenges. Large-scale plantations can lead to deforestation, loss of biodiversity, and disruption of local ecosystems. As the demand for rubber continues to rise, sustainable practices in hevea cultivation are becoming increasingly important. Efforts to promote agroforestry and intercropping with other species can help mitigate some of the negative impacts associated with monoculture plantations.In addition to its economic significance, the hevea tree holds cultural importance in many regions. In some communities, traditional methods of tapping and processing latex from the hevea tree are passed down through generations, representing a way of life that is closely tied to nature. These practices not only provide livelihoods but also foster a sense of identity and connection to the land.Moreover, the research surrounding the hevea tree is ongoing, with scientists exploring ways to improve its yield and disease resistance. Advances in biotechnology may lead to the development of genetically modified varieties of hevea that can thrive in less-than-ideal conditions or produce higher quantities of latex. Such innovations could play a crucial role in meeting the global demand for rubber while minimizing environmental impacts.In conclusion, the hevea tree is more than just a source of rubber; it is a vital component of our global ecosystem and economy. Understanding its significance helps us appreciate the intricate relationship between humans and nature. As we move forward, it is essential to balance the benefits derived from the hevea tree with the need for sustainable practices that protect our environment for future generations. Only then can we ensure that the legacy of the hevea tree continues to thrive, providing for both people and the planet.
植物的世界浩瀚而多样，但很少有物种对人类生活产生如此重大影响，如hevea。这种热带树木，学名为Hevea brasiliensis，主要用于其乳胶，乳胶是天然橡胶的主要来源。hevea树的重要性不容小觑，因为它改变了工业并改善了全球无数人的生活质量。hevea树起源于亚马逊雨林，早在欧洲殖民者到来之前，土著人民就开始从中提取乳胶。收获的乳胶是一种乳白色液体，可以加工成橡胶，广泛用于各种产品，从轮胎到医疗用品。hevea橡胶的商业化始于19世纪末，导致橡胶热潮，改变了经济和社会。hevea树最显著的特点之一是其对不同气候的适应能力。虽然它在潮湿的热带地区生长良好，但在世界各个地区，包括东南亚、非洲和南美，也成功种植。这种适应性使泰国和印度尼西亚等国成为天然橡胶的主要生产国，对其经济产生了重大影响。然而，hevea的种植也带来了环境挑战。大规模的种植园可能导致森林砍伐、生物多样性丧失和当地生态系统的破坏。随着对橡胶需求的不断增加，hevea种植中的可持续实践变得越来越重要。推广农林复合经营和与其他物种间作的努力可以帮助减轻与单一种植园相关的一些负面影响。除了经济重要性外，hevea树在许多地区也具有文化意义。在一些社区中，从hevea树中提取和加工乳胶的传统方法代代相传，代表着与自然紧密相连的生活方式。这些做法不仅提供生计，还培养了对土地的身份认同和联系。此外，围绕hevea树的研究仍在继续，科学家们正在探索提高其产量和抗病性的方式。生物技术的进步可能导致转基因hevea品种的发展，这些品种能够在条件不理想的情况下生存或产生更高数量的乳胶。这些创新在满足全球对橡胶的需求的同时，可能在减少环境影响方面发挥至关重要的作用。总之，hevea树不仅是橡胶的来源；它是我们全球生态系统和经济的重要组成部分。理解其重要性有助于我们欣赏人类与自然之间错综复杂的关系。随着我们向前发展，平衡从hevea树中获得的利益与保护环境的可持续实践的必要性至关重要。只有这样，我们才能确保hevea树的遗产继续繁荣，为人类和地球提供支持。
