sheaths

简明释义

英[ʃiːθs]美[ʃiːθs]

n. 鞘；女式紧身服装；避孕套（sheath 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The method further includes the steps of passing the cable between the direction-changers, inside the springs, inside the sheaths, and around the drum.

将该缆线在这些方向变换器之间、在这些弹簧内部、在这些护套内部并且围绕该绞盘穿过；

2.An oversized padded leather covering for the hand used in catching balls especially one with more finger sheaths than the catcher's or first baseman's mitt.

棒球手套一种较大的防护手用的皮手套，用来接球，尤指比防守员和守垒员的手套多几个手指套的一种手套。

3.An oversized padded leather covering for the hand used in catching balls especially one with more finger sheaths than the catcher's or first baseman's mitt.

棒球手套一种较大的防护手用的皮手套，用来接球，尤指比防守员和守垒员的手套多几个手指套的一种手套。

4.Sheaths are also made to command high appreciation and value.

刀鞘被制作的具有很高的观赏性和价值。

5.The separation purification and appraisal of mold on the leather sheaths and paneling in the military warehouses were carried out.

为了采取有效措施防治兵工仓库中霉菌的危害，对某兵工仓库中包装板和皮套上的霉菌进行了分离纯化与鉴定。

6.Both MD and SD enhanced the remobilization of non-structural carbohydrate from stems (including sheaths) and increased its contribution to grains.

MD和SD增加了茎(含鞘)中非结构性碳水化物的输出率和对籽粒的贡献率。

7.Tough sheaths push through the earth and do the backwork needed for the emergence.

坚韧的叶鞘拱出了土壤，需要对突出体作辅助工作。

8.The artist carefully placed the brush back into its sheath after finishing the painting.

艺术家在完成画作后小心地将画笔放回它的鞘中。

9.The knight drew his sword from its sheath to prepare for battle.

骑士从他的鞘中拔出剑，准备迎战。

10.Sheaths of paper were stacked neatly on the desk, ready for printing.

一叠叠的纸张整齐地堆放在桌子上，准备打印。

11.The doctor removed the sheath from the scalpel before making the incision.

医生在切开前先将手术刀的鞘取下。

12.The knife sheaths are made from high-quality leather for durability.

刀具的鞘是由高质量的皮革制成，耐用性强。

作文

In the world of biology, the term sheaths refers to protective coverings that encase or surround certain structures. For example, in plants, the leaf sheaths are crucial for protecting the delicate parts of the plant while also providing support. These sheaths help to keep moisture in and prevent damage from external factors such as pests and harsh weather conditions. Similarly, in the animal kingdom, many organisms have evolved various forms of sheaths to safeguard their vital organs. The most notable example is the sheath that covers nerves, which is essential for the proper functioning of the nervous system. This myelin sheath acts as an insulator, allowing electrical impulses to travel quickly along the nerve fibers.Moreover, the concept of sheaths extends beyond biology and into technology. In engineering, cables often come with protective sheaths that ensure durability and safety. These sheaths prevent environmental damage and reduce the risk of electrical hazards. For instance, the rubber or plastic sheaths around electrical wires are designed to withstand heat, moisture, and physical abrasion, making them essential for safe operations in various settings.The metaphorical use of sheaths can also be applied in literature and art. Authors often describe emotions or thoughts as being encased in sheaths, suggesting that there is more beneath the surface. For instance, a character may have a tough exterior—a sheath of bravado—while hiding vulnerability inside. This layered approach to character development adds depth to storytelling and allows readers to connect more profoundly with the narrative.In summary, the term sheaths encompasses a wide range of meanings across different fields. Whether it is in biology, technology, or literature, sheaths serve as protective layers that provide safety and support. Understanding the significance of sheaths can enhance our appreciation of both the natural world and human creations. As we explore various contexts where sheaths play a role, we gain insights into the importance of protection and the complexities of existence. Ultimately, the study of sheaths reminds us that beneath every layer lies something valuable, waiting to be discovered and understood.

在生物学的世界中，术语sheaths指的是包裹或环绕某些结构的保护性覆盖物。例如，在植物中，叶子sheaths对保护植物的细腻部分至关重要，同时也提供支持。这些sheaths有助于保持水分，防止来自外部因素如害虫和恶劣天气条件的损害。同样，在动物王国中，许多生物进化出了各种形式的sheaths来保护其重要器官。最显著的例子是覆盖神经的鞘，这对于神经系统的正常功能至关重要。这种髓鞘sheath作为绝缘体，允许电信号在神经纤维上快速传递。此外，sheaths的概念不仅限于生物学，还延伸到技术领域。在工程中，电缆通常配有保护sheaths，以确保耐用性和安全性。这些sheaths可以防止环境损害，并减少电气危险的风险。例如，电线周围的橡胶或塑料sheaths旨在抵御热量、潮湿和物理磨损，使其在各种环境中安全操作至关重要。在文学和艺术中，sheaths的隐喻用法也可以被应用。作者常常将情感或思想描述为被包裹在sheaths中，暗示表面下还有更多的内容。例如，一个角色可能有一个坚韧的外表——一种勇气的sheath——而隐藏着内心的脆弱。这种对角色发展的层次化处理为故事增添了深度，使读者能够更深刻地与叙事联系。总之，术语sheaths在不同领域涵盖了广泛的含义。无论是在生物学、技术还是文学中，sheaths都作为保护层，提供安全和支持。理解sheaths的重要性可以增强我们对自然界和人类创造的欣赏。当我们探索sheaths发挥作用的各种背景时，我们获得了对保护重要性和存在复杂性的洞察。最终，研究sheaths提醒我们，每一层之下都隐藏着宝贵的东西，等待被发现和理解。