saltation

简明释义

英[sælˈteɪʃən]美[sælˈteɪʃən]

n. 突变；跳跃

英英释义

单词用法

同义词

反义词

例句

1.Mutation analysis showed that the saltation of sunshine durations at tobacco growth period in western Henan occurred in 1981.

突变分析表明，豫西烟区烤烟生育期的日照时数在1981年发生突变。

2.The modulate Gauss function is selected as the analysis wavelet to deal with the fault signal saltation caused by the damage concussion, according to the (characteristics) of fault vibration signals.

根据走行部故障振动信号的特点，选用调制高斯函数作为分析小波，处理由损伤冲击造成的信号突变。

3.Recently, the protoplast culture of medicinal plants has mace great progress in the saltation of high productive cell lines, somatic cell hybridization and gene engineering.

目前，原生质体培养在药用植物高产细胞系的筛选、体细胞杂交和基因工程方面已取得了长足的进展。

4.The modulate Gauss function is selected as the analysis wavelet to deal with the fault signal saltation caused by the damage concussion, according to the (characteristics) of fault vibration signals.

根据走行部故障振动信号的特点，选用调制高斯函数作为分析小波，处理由损伤冲击造成的信号突变。

5.We first consider this minimum velocity for horizontal flow, the saltation velocity.

首先讨论在水平流动时的最低速度，即沉积速度。

6.In this paper, the properties of two starts of sand particles were analyzed, the fluid start was defined as wind erosion start and impact start of saltation as substitution start for the first time.

文章分析了沙粒两种起动的不同性质，首次把流体起动界定为风蚀性起动，把跃移质冲击起动界定为置换性起动。

7.The scientist observed a sudden change in the species' traits, which he described as a form of saltation.

科学家观察到物种特征的突然变化，他将其描述为一种跳跃式变异。

8.In evolutionary biology, saltation can lead to rapid adaptations that may not occur through gradual changes.

在进化生物学中，跳跃式变异可以导致快速适应，而不是逐渐变化。

9.The artist's work showed a saltation in style, moving from realism to abstract forms.

这位艺术家的作品风格发生了跳跃式变化，从现实主义转向抽象形式。

10.The concept of saltation is often discussed in the context of genetic mutations.

在遗传突变的背景下，跳跃式变异这一概念常常被讨论。

11.Some theories suggest that saltation might explain sudden appearances of new species in the fossil record.

一些理论认为，跳跃式变异可能解释了化石记录中新物种的突然出现。

作文

In the study of evolutionary biology, the concept of saltation (突变) plays a significant role in understanding how species evolve over time. Unlike the traditional view of gradual evolution through small, incremental changes, saltation suggests that species can undergo sudden and substantial changes in their genetic makeup. This theory has sparked considerable debate among scientists and has led to various interpretations of how evolution occurs. One of the most famous proponents of this idea was the biologist Richard Goldschmidt, who argued that certain mutations could lead to new species appearing almost overnight, rather than through a slow accumulation of traits. The implications of saltation are profound. If significant evolutionary changes can occur rapidly, it challenges the notion of a linear progression of life forms. For instance, consider the case of the peppered moth in England. During the Industrial Revolution, the population of these moths shifted dramatically in color due to environmental changes. This occurrence can be viewed as an example of saltation, where a population adapted quickly to its surroundings, leading to a rapid change in its characteristics. Such examples illustrate that evolution is not merely a slow process but can also involve sudden shifts that allow species to survive in changing environments. Moreover, saltation has implications beyond biology; it can also be applied to other fields such as linguistics and culture. Language evolves through both gradual changes and sudden leaps, often influenced by social factors, technology, and contact with other cultures. For instance, the introduction of new technologies has led to the rapid adoption of new vocabulary, demonstrating a form of linguistic saltation (突变) where entire sets of terms emerge almost simultaneously. In the realm of culture, saltation can be observed during significant historical events that reshape societal norms and values. The civil rights movement in the United States, for example, brought about sudden and dramatic changes in legislation and public perception regarding race and equality. These cultural shifts can be seen as a form of saltation, where the collective consciousness of a society evolves rapidly in response to pressing social issues. Understanding saltation (突变) allows us to appreciate the complexity of change, whether it be in nature, language, or society. It encourages us to look beyond the surface and recognize that evolution, in all its forms, can be both gradual and abrupt. By embracing the idea of saltation, we can foster a deeper understanding of the world around us and the processes that drive change. As we continue to explore the intricacies of evolution, both biological and cultural, the concept of saltation will undoubtedly remain a crucial element in our quest for knowledge. In conclusion, whether in biology, linguistics, or cultural studies, saltation serves as a reminder that change is often unpredictable and can occur in ways we might not expect.

在进化生物学的研究中，saltation（突变）这一概念在理解物种如何随时间演变方面发挥着重要作用。与通过小的渐进变化进行逐步进化的传统观点不同，saltation 提出物种可以在其遗传构成上经历突然且重大的变化。这一理论在科学家之间引发了相当大的争论，并导致对进化如何发生的各种解释。其中最著名的支持者之一是生物学家理查德·戈德施密特，他认为某些突变可能导致新物种几乎在一夜之间出现，而不是通过特征的缓慢积累。 saltation 的含义深远。如果显著的进化变化可以迅速发生，这就挑战了生命形式线性发展的观念。例如，考虑英国的胡椒蛾。在工业革命期间，这些蛾子的颜色因环境变化而迅速转变。这一现象可以视为 saltation 的一个例子，在这种情况下，一个种群快速适应其环境，导致其特征的迅速变化。这些例子说明，进化不仅仅是一个缓慢的过程，也可以涉及允许物种在变化的环境中生存的突然变化。 此外，saltation 的含义超越了生物学；它还可以应用于语言学和文化等其他领域。语言通过渐进变化和突然的飞跃演变，通常受到社会因素、技术和与其他文化接触的影响。例如，新技术的引入导致新词汇的快速采用，展示了一种语言上的 saltation（突变），整个术语集几乎同时出现。 在文化领域，saltation 可以在重塑社会规范和价值观的重要历史事件中观察到。美国的民权运动，例如，带来了关于种族和平等的立法和公众认知的突然和戏剧性的变化。这些文化转变可以视为一种 saltation，其中社会的集体意识在应对紧迫的社会问题时迅速演变。 理解 saltation（突变）使我们能够欣赏变化的复杂性，无论是在自然、语言还是社会中。它鼓励我们超越表面，认识到进化以各种形式可以是渐进的也可以是突发的。通过接受 saltation 的理念，我们可以加深对周围世界及推动变化过程的理解。在我们继续探索进化的复杂性，无论是生物学的还是文化的，saltation 概念无疑将继续成为我们追求知识的重要元素。总之，无论是在生物学、语言学还是文化研究中，saltation 都提醒我们，变化往往不可预测，并且可能以我们意想不到的方式发生。