periodic

简明释义

英[ˌpɪəriˈɒdɪk]美[ˌpɪriˈɑːdɪk]

adj. 阶段性的，定期的；（化学）元素周期表的；（修辞）完整句的

英英释义

单词用法

同义词

反义词

例句

1.Early versions of the periodic table had gaps, missing elements.

早期的元素周期表有空缺，缺少一些元素。

2.Does that explain why it was missing in the periodic table?

这能解释为什么它在元素周期表中缺失了吗？

3.For example, tellurium comes before iodine in the periodic table, even though its atomic mass is slightly greater.

例如在元素周期表中，碲排在碘之前，尽管它的原子质量略大一些。

4.Online time has doubled since 2006, and social media use has moved from a periodic activity to a daily one in the same period.

自2006年以来，上网时间翻了一番，而与此同时，社交媒体的使用也已经从定期活动变成了日常活动。

5.However, when diatoms are observed under constant conditions in a laboratory, they still display periodic behavior, continuing to burrow on schedule for several weeks.

然而，当在实验室的恒定条件下观察硅藻时，它们仍然表现出周期性的行为，继续按计划挖掘几个星期。

6.The close correspondence between the observed properties of gallium and Mendeleyev's predictions for eka-aluminum lent strong support to the periodic law.

镓表现出的性质与门捷列夫对“铝下元素”的预测密切对应，为周期律提供了有力的支持。

7.Periodic checks are taken to ensure that high standards are maintained.

进行周期性检查以确保高标准得以维持。

8.She receives periodic 定期的 newsletters about the latest developments in her field.

她定期收到关于她领域最新发展的新闻简报。

9.The company performs periodic 定期的 maintenance on its equipment to ensure efficiency.

公司对其设备进行定期的维护以确保效率。

10.We have periodic 定期的 meetings to discuss project updates and progress.

我们有定期的会议来讨论项目更新和进展。

11.The periodic 周期性 table organizes all known elements based on their atomic number.

元素的周期性表根据原子序数组织所有已知元素。

12.The scientist conducted a series of periodic 周期性的 tests to monitor the chemical reactions.

科学家进行了系列的周期性的测试以监测化学反应。

作文

The concept of time is an essential part of our lives, and it influences everything from our daily routines to the grand cycles of nature. One of the most fascinating aspects of time is its periodic (周期性的) nature. In various fields, we observe patterns that repeat at regular intervals, which allows us to better understand and predict events. This essay will explore the significance of periodic (周期性的) phenomena in different contexts, including science, history, and personal life.In the realm of science, the periodic (周期性的) table of elements is a prime example of how organization based on periodicity can lead to significant discoveries. Dmitri Mendeleev, a Russian chemist, arranged the elements according to their atomic weights and observed that certain properties occurred at regular intervals. This arrangement not only helped in predicting the existence of undiscovered elements but also provided a systematic way to understand chemical behavior. The periodic (周期性的) nature of elements demonstrates how underlying principles govern the natural world, allowing scientists to make predictions and conduct experiments with confidence.Similarly, in the field of astronomy, the periodic (周期性的) orbits of celestial bodies reveal the harmony of the universe. For instance, the planets in our solar system follow periodic (周期性的) paths around the sun, which can be calculated and predicted with remarkable accuracy. These periodic (周期性的) movements are not just fascinating; they are crucial for navigation and understanding seasonal changes on Earth. The study of these periodic (周期性的) cycles has led to advancements in technology, such as satellite systems that rely on precise calculations of orbits.Moving beyond the sciences, history also showcases periodic (周期性的) patterns. For example, the rise and fall of civilizations often follow periodic (周期性的) trends. Historians have noted that societies tend to go through cycles of growth, prosperity, decline, and renewal. By studying these periodic (周期性的) patterns, we can glean insights into the factors that contribute to societal changes. Understanding these cycles can help us prepare for potential challenges and embrace opportunities for growth.On a personal level, individuals often experience periodic (周期性的) phases in their lives. For instance, many people go through cycles of motivation and productivity, where they feel highly driven at certain times and less so at others. Recognizing these periodic (周期性的) fluctuations can help individuals manage their time and energy more effectively. By aligning their goals with their natural rhythms, they can enhance their overall well-being and performance.Moreover, the concept of periodic (周期性的) events extends to nature itself. The changing of the seasons is a clear example of periodic (周期性的) cycles that affect all living organisms. Spring brings new life, summer offers growth, autumn signifies harvesting, and winter represents rest. These periodic (周期性的) changes influence not only the environment but also cultural practices and traditions across the globe. Many festivals and rituals are timed to coincide with these natural cycles, emphasizing the importance of living in harmony with the rhythms of the earth.In conclusion, the term periodic (周期性的) encapsulates a fundamental aspect of existence that permeates various domains, from science to personal life. Recognizing and understanding periodic (周期性的) patterns can empower us to make informed decisions, predict future events, and appreciate the beauty of the cycles that shape our world. Embracing the periodic (周期性的) nature of life encourages us to find balance and harmony in our endeavors, ultimately leading to a more fulfilling existence.

时间的概念是我们生活中一个重要的部分，它影响着从我们的日常活动到自然界的宏大循环的一切。时间最引人入胜的方面之一就是它的周期性的特性。在各个领域，我们观察到以规律间隔重复的模式，这使我们能够更好地理解和预测事件。本文将探讨周期性的现象在科学、历史和个人生活中的重要性。在科学领域，元素的周期性表是如何基于周期性组织导致重大发现的一个典范。俄罗斯化学家德米特里·门捷列夫根据元素的原子量排列元素，并观察到某些属性以规律间隔出现。这种排列不仅有助于预测未发现元素的存在，还提供了一种系统化理解化学行为的方法。元素的周期性特性展示了潜在原则如何支配自然世界，使科学家能够自信地进行预测和实验。同样，在天文学领域，天体的周期性轨道揭示了宇宙的和谐。例如，太阳系中的行星沿着周期性路径围绕太阳运行，这可以被计算和预测得非常准确。这些周期性的运动不仅令人着迷，而且对导航和理解地球上的季节变化至关重要。对这些周期性周期的研究促进了技术的发展，例如依赖于精确轨道计算的卫星系统。超越科学，历史也展示了周期性的模式。例如，文明的兴衰往往遵循周期性的趋势。历史学家注意到，社会往往经历增长、繁荣、衰退和重生的周期。通过研究这些周期性的模式，我们可以洞察导致社会变化的因素。理解这些周期可以帮助我们为潜在挑战做好准备，并抓住增长的机会。在个人层面，个体往往经历生活中的周期性的阶段。例如，许多人在某些时候感到高度积极，而在其他时候则感到动力不足。认识到这些周期性的波动可以帮助个人更有效地管理自己的时间和精力。通过将他们的目标与他们的自然节律对齐，他们可以增强整体福祉和表现。此外，周期性的事件的概念延伸到自然本身。季节的更替是周期性的循环的明显例子，影响着所有生物体。春天带来新生命，夏天提供生长，秋天象征收获，冬天代表休息。这些周期性的变化不仅影响环境，还影响全球的文化实践和传统。许多节日和仪式的时间安排与这些自然周期相吻合，强调了与地球节奏和谐共生的重要性。总之，周期性的一词概括了存在的一个基本方面，渗透到各个领域，从科学到个人生活。认识和理解周期性的模式可以使我们能够做出明智的决策，预测未来事件，并欣赏塑造我们世界的循环之美。拥抱生活的周期性的特性鼓励我们在努力中找到平衡与和谐，最终导致更充实的存在。