nuclei

简明释义

英[ˈnjuːklɪaɪ]美[ˈnjʊklɪˌai]

n. 核心，核子；原子核（nucleus 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.These nuclei are then zapped briefly with a second magnetic field that knocks them out of alignment with the first one.

然后，用第二个磁场短时轰击这些原子核，使其脱离第一个磁场阵列。

2.Fusion involves colliding small atomic nuclei together to form larger ones, and thus releasing energy.

核聚变中，小原子核相互碰撞，形成大原子核，释放能量。

3.But accelerators could potentially produce nuclear fusion, which fuses atomic nuclei together.

而加速器可能产生核聚变，将原子核融合在一起。

4.Alpha particles are these helium nuclei, and they are the result of radioactive decay.

阿尔法粒子是氦核，它们是放射性衰变的产物。

5.But a powerful beam of subatomic particles could be used to crush nuclei together strongly enough so they fuse.

而强大的亚原子粒子束可以用来粉碎原子核，其强烈程度足以使它们融合。

6.The real killer is that if we get too close, we're even going to have nuclear-nuclear repulsion between the nuclei of the two atoms.

真正的杀手是，如果我们靠得太近，我们甚至会有两个原子核之间的排斥力。

7.Researchers studied the nuclei of various plant cells to understand their growth patterns.

研究人员研究了各种植物细胞的细胞核以了解其生长模式。

8.The cell's nuclei are responsible for storing genetic information.

细胞的细胞核负责储存遗传信息。

9.The presence of multiple nuclei in a muscle fiber is essential for its function.

肌肉纤维中多个细胞核的存在对其功能至关重要。

10.During mitosis, the nuclei of the parent cells divide to form new nuclei in the daughter cells.

在有丝分裂过程中，母细胞的细胞核分裂形成子细胞的新细胞核。

11.In a multicellular organism, different types of cells have distinct nuclei that perform specialized functions.

在多细胞生物中，不同类型的细胞具有不同的细胞核，执行特定功能。

作文

In the realm of science, particularly in biology and physics, the term nuclei refers to the plural form of nucleus, which is a central part of an atom or a cell. Understanding the function and significance of nuclei is essential for grasping fundamental concepts in these fields. In biology, the nuclei of cells house the genetic material that dictates the characteristics of living organisms. Each nuclei contains DNA, which is organized into chromosomes. This genetic blueprint is crucial for processes such as cell division, growth, and development. The role of nuclei extends beyond mere storage of genetic information; they also play a vital role in regulating gene expression, ensuring that the right proteins are produced at the right times. On the other hand, in physics, especially in nuclear physics, nuclei refer to the core of an atom, which consists of protons and neutrons. The study of atomic nuclei helps scientists understand the forces that hold atoms together and the processes that govern nuclear reactions. For instance, the fusion of nuclei in stars produces energy, which is the fundamental process powering the sun and other celestial bodies. Understanding how nuclei interact is crucial for advancements in energy production, including nuclear power and medical applications like radiation therapy.The significance of nuclei in both biology and physics highlights their importance across various scientific disciplines. In medicine, for example, understanding the structure and function of cellular nuclei has led to breakthroughs in genetics and cancer treatment. Researchers have found that certain mutations in the DNA within nuclei can lead to uncontrolled cell growth, resulting in cancer. By targeting these specific changes, scientists aim to develop more effective therapies that can selectively attack cancerous cells while sparing healthy ones.In addition, the study of nuclei is not limited to just atoms and cells. In astrophysics, researchers investigate the nuclei of distant stars to learn about the universe's history and evolution. The composition of stellar nuclei can reveal information about the conditions present during the formation of galaxies and the elements that were formed in the early universe. This research contributes to our understanding of cosmic events, such as supernovae, which occur when massive stars explode, dispersing their nuclei and enriching the interstellar medium with heavy elements.In summary, the term nuclei encompasses a wide range of meanings and implications in various scientific fields. Whether we are discussing the genetic material contained within cellular nuclei or the fundamental building blocks of matter within atomic nuclei, it is clear that they play a crucial role in our understanding of life and the universe. As science continues to advance, the study of nuclei will undoubtedly lead to new discoveries and innovations that can improve our lives and deepen our comprehension of the world around us.

在科学领域，特别是在生物学和物理学中，术语nuclei是nucleus的复数形式，指的是原子或细胞的中心部分。理解nuclei的功能和重要性对于掌握这些领域的基本概念至关重要。在生物学中，细胞的nuclei存储着决定生物特征的遗传物质。每个nuclei都包含DNA，这些DNA以染色体的形式组织。这一遗传蓝图对于细胞分裂、增长和发育等过程至关重要。nuclei的作用不仅仅是存储遗传信息；它们还在调节基因表达中发挥着重要作用，确保在正确的时间产生正确的蛋白质。另一方面，在物理学中，特别是在核物理学中，nuclei指的是原子的核心，由质子和中子组成。对原子nuclei的研究帮助科学家理解将原子结合在一起的力量以及支配核反应的过程。例如，恒星中nuclei的融合产生能量，这是为太阳和其他天体提供动力的基本过程。理解nuclei之间的相互作用对于能源生产的进步至关重要，包括核能和医疗应用，如放射治疗。nuclei在生物学和物理学中的重要性突出显示了它们在各种科学学科中的重要性。例如，在医学中，理解细胞nuclei的结构和功能导致了基因学和癌症治疗的突破。研究人员发现，细胞内nuclei中某些DNA的突变可能导致细胞的失控生长，从而导致癌症。通过针对这些特定变化，科学家旨在开发更有效的疗法，可以选择性地攻击癌细胞，同时保护健康细胞。此外，nuclei的研究不仅限于原子和细胞。在天体物理学中，研究人员调查遥远恒星的nuclei以了解宇宙的历史和演变。恒星nuclei的组成可以揭示在星系形成期间存在的条件以及在早期宇宙中形成的元素。这项研究有助于我们理解宇宙事件，例如超新星，当大质量恒星爆炸时，释放出它们的nuclei并丰富星际介质中的重元素。总之，术语nuclei在各种科学领域中涵盖了广泛的含义和影响。无论我们是在讨论细胞nuclei中包含的遗传物质，还是原子nuclei中的基本构件，显然它们在我们理解生命和宇宙方面发挥着至关重要的作用。随着科学的不断进步，对nuclei的研究无疑将导致新的发现和创新，这些发现和创新可以改善我们的生活，加深我们对周围世界的理解。