datum line

简明释义

基准线

英英释义

例句

1.The construction crew aligned the foundation with the datum line.

施工队将基础与基准线对齐。

2.All elevations are measured from the datum line to maintain accuracy.

所有高程都是从基准线测量的，以保持准确性。

3.The architect used a datum line to ensure all measurements were consistent.

建筑师使用了一个基准线来确保所有测量的一致性。

4.In surveying, the datum line is critical for establishing reference points.

在测量中，基准线对于建立参考点至关重要。

5.The engineer marked the datum line on the blueprint for clarity.

工程师在蓝图上标记了基准线以提高清晰度。

作文

In the field of geography and cartography, the term datum line refers to a reference line from which measurements are taken. This concept is crucial for understanding how maps are created and how geographical data is interpreted. The datum line serves as a baseline for determining elevation and depth, making it an essential element in various scientific disciplines, including geology, oceanography, and environmental science. To illustrate the importance of the datum line, consider how it is used in topographical maps. These maps represent the three-dimensional features of the Earth on a two-dimensional surface. The datum line, often represented by sea level, provides a standard reference point that allows cartographers to depict the elevations of mountains, valleys, and other landforms accurately. Without this reference, it would be nearly impossible to convey the true nature of the terrain effectively.Moreover, the concept of the datum line is not limited to terrestrial applications. In oceanography, for example, the datum line is crucial for measuring ocean depths. The average sea level is often used as the datum line for these measurements, allowing scientists to understand underwater topography and the dynamics of ocean currents. This information is vital for navigation, marine biology, and climate studies, as it helps researchers comprehend how oceanic features influence weather patterns and ecosystems.In addition to its practical applications, the datum line also has philosophical implications. It raises questions about perspective and relativity in our understanding of the world. What constitutes a 'normal' reference point? How do different cultures interpret their geographical realities? For instance, while sea level might serve as a universal datum line for many, other regions may adopt different standards based on local geographical features.Understanding the significance of the datum line can enhance our appreciation for the complexity of the world we inhabit. It serves as a reminder that our perceptions are often shaped by the frameworks we use to interpret our surroundings. As we navigate through life, whether in scientific endeavors or daily experiences, recognizing the underlying reference points can lead to deeper insights and more informed decisions.In conclusion, the datum line is a fundamental concept in geography that plays a critical role in how we measure and understand the Earth. Its applications span various fields, from cartography to oceanography, and it prompts us to consider the philosophical dimensions of measurement and perspective. By grasping the significance of the datum line, we can better appreciate the intricate relationships between our environment and the ways we interpret it.

在地理和制图领域，术语datum line指的是测量所依据的参考线。这个概念对于理解地图的创建以及地理数据的解释至关重要。datum line作为一个基准线，用于确定海拔和深度，是包括地质学、海洋学和环境科学等多个科学学科中的关键元素。为了说明datum line的重要性，可以考虑它在地形图中的应用。这些地图在二维表面上表示地球的三维特征。datum line通常以海平面为代表，提供了一个标准的参考点，使制图师能够准确描绘山脉、山谷和其他地形的海拔。如果没有这个参考点，有效传达地形的真实性质几乎是不可能的。此外，datum line的概念并不仅限于陆地应用。在海洋学中，例如，datum line对测量海洋深度至关重要。平均海平面通常被用作这些测量的datum line，使科学家能够理解水下地形和海洋流动的动态。这些信息对于导航、海洋生物学和气候研究至关重要，因为它帮助研究人员理解海洋特征如何影响天气模式和生态系统。除了其实际应用外，datum line还具有哲学意义。它引发了关于我们对世界的理解中的视角和相对性的问题。什么构成一个“正常”的参考点？不同文化如何解读他们的地理现实？例如，虽然海平面可能作为许多人的普遍datum line，但其他地区可能会根据当地地理特征采用不同的标准。理解datum line的重要性可以增强我们对所居住世界复杂性的欣赏。它提醒我们，我们的感知往往受到我们用来解释周围环境的框架的塑造。当我们在生活中导航，无论是在科学探索还是日常经历中，认识到潜在的参考点可以导致更深入的洞察和更明智的决策。总之，datum line是地理学中的一个基本概念，在我们测量和理解地球的方式中发挥着关键作用。它的应用跨越多个领域，从制图到海洋学，并促使我们考虑测量和视角的哲学维度。通过掌握datum line的重要性，我们可以更好地欣赏我们环境与我们解释之间错综复杂的关系。