hydrographic sextant

简明释义

水道测量用六分仪

英英释义

例句

1.The accuracy of the hydrographic sextant can significantly impact maritime safety.

水文六分仪的准确性可以显著影响海洋安全。

2.A hydrographic sextant is essential for sailors who need to determine their position at sea.

水文六分仪对于需要确定海上位置的水手来说是必不可少的。

3.The captain used the hydrographic sextant to measure the angle of the stars for accurate navigation.

船长使用水文六分仪测量星星的角度以确保准确导航。

4.In the classroom, students learned how to use a hydrographic sextant for practical navigation exercises.

在课堂上，学生们学习如何使用水文六分仪进行实际导航练习。

5.During the research expedition, the team relied on a hydrographic sextant to chart the ocean floor.

在研究考察中，团队依靠水文六分仪绘制海底图。

作文

The art of navigation has evolved significantly over the centuries, but some tools have remained essential for accurate positioning at sea. One such tool is the hydrographic sextant, a device that has played a crucial role in maritime navigation. Understanding the function and importance of the hydrographic sextant is vital for anyone interested in marine science or navigation. This essay will explore the history, functionality, and significance of the hydrographic sextant in the context of hydrography and navigation.Historically, the sextant was developed in the 18th century as an improvement over earlier navigational instruments. The hydrographic sextant specifically refers to a variant designed for use in hydrographic surveys, which involve measuring and mapping the physical features of bodies of water. Unlike traditional sextants that are primarily used for celestial navigation, the hydrographic sextant incorporates additional features that allow for precise measurements of angles between objects on the water's surface and the horizon.The functionality of the hydrographic sextant lies in its ability to measure angles accurately. It consists of a frame, an arc, and a telescope, allowing navigators to sight distant objects while simultaneously measuring their angle relative to the horizon. This capability is particularly important in hydrographic surveys, where understanding the depth and contours of the sea floor is essential. By using the hydrographic sextant, surveyors can collect data that aids in charting safe navigation routes, identifying underwater hazards, and conducting environmental assessments.In addition to its technical aspects, the significance of the hydrographic sextant extends to its impact on maritime safety and environmental protection. Accurate hydrographic surveys are crucial for ensuring that shipping lanes are safe and efficient. By providing detailed information about underwater topography, the hydrographic sextant contributes to the prevention of maritime accidents, which can have devastating consequences for both human life and marine ecosystems.Moreover, the data collected using the hydrographic sextant plays a vital role in scientific research and environmental monitoring. As climate change continues to affect oceanic conditions, understanding the physical characteristics of water bodies becomes increasingly important. Hydrographic surveys help scientists track changes in sea level, sedimentation patterns, and the health of marine habitats. The insights gained from these studies can inform conservation efforts and help policymakers make informed decisions regarding marine resource management.In conclusion, the hydrographic sextant is more than just a navigational tool; it is a cornerstone of hydrographic surveying that enhances our understanding of the world's oceans. Its ability to provide precise measurements is invaluable for ensuring maritime safety and advancing scientific research. As technology continues to evolve, the principles behind the hydrographic sextant remain relevant, reminding us of the importance of accurate navigation and environmental stewardship in our ever-changing world.

导航艺术在几个世纪中经历了显著的发展，但一些工具在海上准确定位方面仍然至关重要。其中一个工具就是水文六分仪，它在海洋导航中发挥了关键作用。理解水文六分仪的功能和重要性对于任何对海洋科学或导航感兴趣的人来说都是至关重要的。本文将探讨水文六分仪在水文测量和导航背景下的历史、功能和重要性。从历史上看，六分仪是在18世纪作为对早期导航仪器的改进而开发的。水文六分仪特别指的是一种为水文测量设计的变体，它涉及测量和绘制水体的物理特征。与主要用于天文导航的传统六分仪不同，水文六分仪结合了额外的功能，允许精确测量水面上物体与地平线之间的角度。水文六分仪的功能在于它能够准确测量角度。它由一个框架、一个弧形刻度和一个望远镜组成，允许导航员在瞄准远处物体的同时测量它们相对于地平线的角度。这种能力在水文测量中尤其重要，因为了解海底的深度和轮廓至关重要。通过使用水文六分仪，测量员可以收集数据，帮助绘制安全的航行路线，识别水下危险，并进行环境评估。除了技术方面，水文六分仪的重要性还延伸到其对海洋安全和环境保护的影响。准确的水文测量对于确保航运通道的安全和高效至关重要。通过提供关于水下地形的详细信息，水文六分仪有助于防止海事事故，这些事故可能对人类生命和海洋生态系统造成灾难性的后果。此外，使用水文六分仪收集的数据在科学研究和环境监测中发挥着重要作用。随着气候变化继续影响海洋条件，了解水体的物理特征变得越来越重要。水文测量帮助科学家跟踪海平面变化、沉积模式和海洋栖息地的健康状况。从这些研究中获得的见解可以为保护工作提供信息，并帮助政策制定者就海洋资源管理做出明智的决定。总之，水文六分仪不仅仅是一种导航工具；它是水文测量的基石，增强了我们对世界海洋的理解。它提供精确测量的能力对于确保海洋安全和推进科学研究至关重要。随着技术的不断发展，水文六分仪背后的原则依然相关，提醒我们在不断变化的世界中准确导航和环境管理的重要性。