rhachis

简明释义

英[ˈreɪ.kɪs]美[ˈreɪ.kɪs]

n. 叶轴；花轴；脊柱；羽轴（等于 rachis）

复 数 r a c h i d e s 或 r h a c h i s e s

英英释义

单词用法

同义词

反义词

例句

1.A healthy rhachis is essential for the overall strength of the feather.

健康的rhachis 对羽毛的整体强度至关重要。

2.In botany, the rhachis refers to the main axis of a compound leaf.

在植物学中，rhachis 指的是复叶的主轴。

3.The rhachis of the feather supports its barbs and is crucial for its aerodynamic properties.

羽毛的rhachis 支撑着其羽枝，对其空气动力学特性至关重要。

4.The rhachis of the plant is often covered in fine hairs that help with moisture retention.

植物的rhachis 通常覆盖着细毛，有助于保持水分。

5.During dissection, we observed the structure of the rhachis in various bird species.

在解剖过程中，我们观察了不同鸟类的rhachis 结构。

作文

In the study of botany, understanding the structure of plants is crucial for comprehending their growth and development. One important term that often comes up in this field is rhachis, which refers to the central axis of a compound leaf or inflorescence. The rhachis serves as a vital support system for the various leaflets or flowers that extend from it, much like the spine in a vertebrate animal. This term not only highlights the importance of structural integrity in plant biology but also emphasizes the intricate relationships between different parts of a plant. The rhachis can be found in various types of plants, including ferns and flowering plants, where it plays a crucial role in their overall architecture. For instance, in ferns, the rhachis connects the fronds, allowing them to spread out and capture sunlight effectively. In flowering plants, the rhachis supports the arrangement of flowers in an inflorescence, ensuring that each flower has adequate exposure to pollinators. This structural component is essential for maximizing photosynthesis and reproduction, two fundamental processes for plant survival.Moreover, the concept of the rhachis extends beyond botany into other fields such as architecture and engineering. Just as the rhachis provides stability and support to plant structures, architects and engineers must consider the 'spines' of their designs to ensure they can withstand various forces. This parallel illustrates how principles of nature can inspire human innovation and design.Additionally, understanding the rhachis allows botanists and horticulturists to make informed decisions about plant care and cultivation. For example, recognizing how the rhachis functions can help gardeners prune plants more effectively, promoting healthy growth and flowering. It also aids in identifying diseases or pests that may affect the rhachis, ensuring timely intervention to protect the plant's health.In conclusion, the term rhachis encapsulates a critical aspect of plant biology that underscores the importance of structural components in the natural world. By studying the rhachis, we gain insights into the complexities of plant life and the interconnectedness of various biological systems. This understanding not only enhances our appreciation for the beauty of nature but also equips us with the knowledge necessary to cultivate and preserve it for future generations. As we continue to explore the wonders of botany, the rhachis will undoubtedly remain a key focus in our quest to understand and appreciate the intricacies of plant life.

在植物学研究中，理解植物的结构对于理解它们的生长和发展至关重要。一个经常出现在这个领域的重要术语是rhachis，它指的是复叶或花序的中央轴线。rhachis作为各种小叶或花的支撑系统非常重要，就像脊椎动物的脊柱一样。这个术语不仅突显了植物生物学中结构完整性的的重要性，还强调了植物不同部分之间复杂的关系。rhachis可以在多种植物中找到，包括蕨类植物和开花植物，在这些植物中，它在整体结构中发挥着至关重要的作用。例如，在蕨类植物中，rhachis连接着叶片，使其能够有效地伸展并捕捉阳光。在开花植物中，rhachis支撑着花朵在花序中的排列，确保每朵花都能充分接触到授粉者。这个结构组件对最大化光合作用和繁殖至关重要，这两个过程是植物生存的基本过程。此外，rhachis的概念超越了植物学，延伸到建筑和工程等其他领域。正如rhachis为植物结构提供稳定性和支持，建筑师和工程师必须考虑他们设计中的“脊柱”，以确保它们能够承受各种力量。这一平行关系说明了自然原则如何激励人类的创新和设计。此外，理解rhachis使植物学家和园艺师能够做出明智的植物护理和栽培决定。例如，认识到rhachis的功能可以帮助园丁更有效地修剪植物，促进健康的生长和开花。它还帮助识别可能影响rhachis的疾病或害虫，确保及时干预以保护植物的健康。总之，术语rhachis概括了植物生物学的一个关键方面，强调了自然界中结构组件的重要性。通过研究rhachis，我们获得了对植物生命复杂性的洞察，以及各种生物系统之间的相互联系。这种理解不仅增强了我们对自然之美的欣赏，还为我们提供了必要的知识，以培养和保护自然，为后代留下遗产。当我们继续探索植物学的奇迹时，rhachis无疑将成为我们理解和欣赏植物生命复杂性的关键焦点。