dead reckoning

简明释义

船位推算法

英英释义

例句

1.The captain explained how dead reckoning works to the new crew members.

船长向新船员解释了推算导航的工作原理。

2.Using dead reckoning, we calculated that we should be near the island by now.

通过推算导航，我们计算出现在应该靠近岛屿了。

3.The pilot used dead reckoning to estimate their position after flying through a storm.

飞行员在经历风暴后，使用推算导航来估算他们的位置。

4.In the absence of landmarks, dead reckoning is crucial for accurate navigation.

在没有地标的情况下，推算导航对准确导航至关重要。

5.During our sailing trip, we relied on dead reckoning to navigate when the GPS signal was lost.

在我们的航海旅行中，当GPS信号丢失时，我们依靠推算导航来导航。

作文

In the realm of navigation, the term dead reckoning refers to a method used to estimate one's current position by using a previously determined location and advancing that position based upon known or estimated speeds over elapsed time and course. This technique has been employed by sailors and aviators for centuries, serving as a fundamental practice before the advent of modern navigation technologies like GPS. The essence of dead reckoning lies in its simplicity: it requires only a compass and a clock, making it accessible even in the most challenging environments where advanced technology may fail. The process of dead reckoning begins with an accurate initial position, which can be established through celestial navigation, landmarks, or electronic devices. Once the starting point is determined, navigators must keep track of their heading and speed. By doing so, they can calculate their new position at any given moment. For instance, if a ship departs from a harbor heading north at a speed of five knots, after one hour, the navigator would estimate that the vessel is now five nautical miles north of the harbor. However, this method does have its limitations; factors such as wind, currents, and human error can significantly affect accuracy, leading to potential deviations from the intended course.Despite these challenges, dead reckoning remains relevant today, particularly in situations where GPS signals are unreliable or unavailable. Pilots flying in remote areas or sailors navigating through dense fog often rely on this technique. It teaches valuable lessons about the importance of maintaining awareness of one's surroundings and understanding the principles of navigation. Moreover, dead reckoning can also serve as a metaphor for decision-making in life. Just as navigators must make educated guesses about their position based on incomplete information, individuals often find themselves in situations where they must rely on their judgment and past experiences to guide their choices. Life can be unpredictable, much like the sea, where currents and winds can change direction unexpectedly. In this context, dead reckoning encourages us to trust our instincts while remaining adaptable to changing circumstances. Just as a sailor adjusts their course based on new information, we too must be willing to recalibrate our paths when faced with unforeseen challenges. This mindset fosters resilience and the ability to navigate through life’s uncertainties with confidence. In conclusion, dead reckoning is more than just a navigational technique; it embodies a philosophy of adaptability and intuition. It reminds us that while we may not always have a clear view of our destination, we can still make progress by relying on our knowledge and experiences. As we sail through the waters of life, let us embrace the spirit of dead reckoning, charting our courses with courage and conviction, even when the way forward seems unclear.

在导航领域，术语dead reckoning指的是一种通过使用先前确定的位置，并根据已知或估计的速度和经过的时间及航向来估算当前位置的方法。这种技术已经被水手和飞行员使用了几个世纪，是现代导航技术（如GPS）出现之前的一项基本实践。dead reckoning的本质在于其简单性：它仅需要一个罗盘和一个时钟，使其在最具挑战性的环境中也能被访问。dead reckoning的过程始于一个准确的初始位置，这可以通过天文导航、地标或电子设备来确定。一旦确定了起点，导航员必须跟踪他们的航向和速度。通过这样做，他们可以计算出在任何给定时刻的新位置。例如，如果一艘船以每小时五节的速度从港口向北出发，那么在一个小时后，导航员会估计该船现在位于港口以北五海里。然而，这种方法确实有其局限性；风流、洋流和人为错误等因素可能会显著影响准确性，导致与预定航线的潜在偏差。尽管面临这些挑战，dead reckoning在今天仍然相关，特别是在GPS信号不可靠或不可用的情况下。在偏远地区飞行的飞行员或在浓雾中航行的水手通常依赖于这一技术。它教会我们关于保持对周围环境的意识和理解导航原则的重要性。此外，dead reckoning也可以作为生活中决策的隐喻。正如导航员必须根据不完整的信息对其位置做出明智的猜测，个人在生活中常常发现自己处于必须依赖判断和过去经验来指导选择的情况。生活可能是不可预测的，就像海洋一样，洋流和风向可能会意外改变。在这种背景下，dead reckoning鼓励我们相信自己的直觉，同时保持对变化情况的适应能力。就像水手根据新信息调整航向一样，我们也必须愿意在面临意想不到的挑战时重新校准我们的道路。这种心态培养了韧性和在生活的不确定性中自信导航的能力。总之，dead reckoning不仅仅是一种导航技术；它体现了一种适应性和直觉的哲学。它提醒我们，虽然我们可能并不总能清晰地看到目标，但我们仍然可以依靠我们的知识和经验取得进展。当我们在生活的海洋中航行时，让我们拥抱dead reckoning的精神，以勇气和信念规划我们的航程，即使前方的道路似乎不明确。