angle sextant

简明释义

测角六分仪

英英释义

例句

1.By calibrating the angle sextant, the navigator improved his readings.

通过校准角度六分仪，导航员提高了他的读数。

2.To navigate accurately, he relied on his angle sextant during the voyage.

为了准确导航，他在航行中依赖于他的角度六分仪。

3.The sailor used the angle sextant to measure the altitude of the sun at noon.

水手使用角度六分仪在中午测量太阳的高度。

4.The angle sextant is an essential tool for celestial navigation.

角度六分仪是天文导航的基本工具。

5.Using the angle sextant, they determined their position relative to the stars.

通过使用角度六分仪，他们确定了自己相对于星星的位置。

作文

The term angle sextant refers to a navigational instrument used primarily in maritime contexts to measure the angle between two visible objects. This tool has played a crucial role in navigation, allowing sailors to determine their position at sea by measuring the altitude of celestial bodies above the horizon. The angle sextant is an essential device that combines both simplicity and precision, making it a favorite among navigators for centuries.To understand the significance of the angle sextant, one must first appreciate the challenges faced by sailors before the advent of modern navigation technologies. In the past, navigating through vast oceans was fraught with uncertainty. Sailors relied heavily on their knowledge of the stars and the sun to guide them. The introduction of the angle sextant revolutionized this process. By allowing mariners to accurately measure angles, they could calculate their latitude and longitude with remarkable accuracy.The mechanics of the angle sextant are fascinating. It consists of a graduated arc, a sighting mechanism, and a telescope. When using the instrument, the navigator aligns the horizon with the image of a celestial body, such as the sun or a star, reflected in the instrument's mirror. By reading the angle on the graduated arc, the navigator can determine their position relative to the earth's surface. This method of measurement is not only effective but also relatively easy to learn, making the angle sextant accessible to many sailors.In addition to its practical applications, the angle sextant holds historical significance. It represents a pivotal moment in the evolution of navigation. Before its invention, navigators were limited by rudimentary tools and techniques. The angle sextant allowed for greater exploration and discovery, leading to the age of exploration where new lands were discovered, and trade routes were established.Moreover, the angle sextant has become a symbol of maritime tradition. Even in today’s digital age, where GPS technology dominates navigation, many sailors still carry a sextant aboard their vessels. This practice is not merely a nod to tradition; it serves as a backup in case of electronic failure. The ability to navigate using the angle sextant remains a valuable skill, ensuring that mariners can always find their way home, regardless of technological advances.In conclusion, the angle sextant is more than just a navigational instrument; it is a testament to human ingenuity and the relentless pursuit of knowledge. Its ability to measure angles with precision has changed the course of maritime history, enabling explorers to traverse uncharted waters and connect distant lands. As we continue to advance technologically, the legacy of the angle sextant serves as a reminder of the importance of understanding our environment and the tools we use to navigate through it. Whether one is a seasoned sailor or a curious learner, the angle sextant remains an integral part of our collective journey through the seas of time.

术语angle sextant指的是一种主要用于海洋环境中的导航仪器，用于测量两个可见物体之间的角度。这个工具在导航中发挥了至关重要的作用，允许水手通过测量天体在地平线上方的高度来确定他们在海上的位置。angle sextant是一种结合了简单性和精确性的基本设备，使其成为数百年来航海者的最爱。要理解angle sextant的重要性，首先必须欣赏水手在现代导航技术出现之前所面临的挑战。在过去，穿越广阔海洋的导航充满了不确定性。水手们严重依赖对星星和太阳的知识来引导自己。angle sextant的引入彻底改变了这一过程。通过允许海员准确测量角度，他们可以以惊人的准确性计算自己的纬度和经度。angle sextant的机械原理非常迷人。它由一个刻度弧、一个瞄准机制和一个望远镜组成。在使用该仪器时，导航员将地平线与天体（如太阳或星星）在仪器镜子中反射的图像对齐。通过读取刻度弧上的角度，导航员可以确定自己相对于地球表面的位置。这种测量方法不仅有效，而且相对容易学习，使得angle sextant对许多水手来说都是可及的。除了实际应用外，angle sextant还有历史意义。它代表了导航演变中的一个关键时刻。在其发明之前，导航员受到简单工具和技术的限制。angle sextant允许更大的探索和发现，导致了探索时代的到来，新土地被发现，贸易路线被建立。此外，angle sextant已成为海事传统的象征。即使在今天的数字时代，GPS技术主导导航，许多水手仍然在船上携带一个六分仪。这一做法不仅仅是对传统的致敬；它作为电子故障时的备份。使用angle sextant进行导航的能力仍然是一项宝贵的技能，确保水手无论技术如何进步，都能找到回家的路。总之，angle sextant不仅仅是一种导航仪器；它是人类聪明才智和对知识不懈追求的证明。它以精确测量角度的能力改变了海洋历史的进程，使探险家能够穿越未知水域，连接遥远的土地。随着我们继续在技术上进步，angle sextant的遗产提醒我们理解环境及我们用来在其中导航的工具的重要性。无论是经验丰富的水手还是好奇的学习者，angle sextant仍然是我们共同航行于时间海洋的重要组成部分。