Loran chart

简明释义

罗兰海图

英英释义

例句

1.Using a Loran chart is essential for safe maritime navigation.

使用洛兰图对于安全的海上导航至关重要。

2.The Loran chart helped us avoid dangerous reefs during our journey.

这张洛兰图帮助我们在旅途中避开了危险的礁石。

3.He plotted our course on the Loran chart before we left the harbor.

在我们离开港口之前，他在洛兰图上绘制了我们的航线。

4.The captain used the Loran chart to navigate through the foggy waters.

船长使用洛兰图在雾蒙蒙的水域中导航。

5.Before setting sail, the crew reviewed the Loran chart for accurate positioning.

在启航之前，船员们查看了洛兰图以确保位置准确。

作文

Navigational tools have evolved significantly over the years, greatly enhancing the safety and efficiency of maritime travel. Among these tools, the Loran chart plays a crucial role in navigation. A Loran chart is essentially a type of navigational chart used in conjunction with Loran (Long Range Navigation) systems, which are based on hyperbolic navigation principles. These charts provide mariners with vital information about their location and help them navigate safely through various water bodies.The development of the Loran chart dates back to the early 20th century when the need for precise navigation became increasingly evident. As ships began to venture further into open waters, traditional navigation methods, such as dead reckoning and celestial navigation, proved insufficient. The introduction of radio navigation systems, including Loran, marked a significant breakthrough in maritime navigation.A Loran chart typically includes various features that are essential for safe navigation. These features include depth contours, navigational aids, and important landmarks. By using a Loran chart, sailors can determine their position relative to known points, making it easier to plot a course and avoid hazards. The accuracy provided by Loran systems has made these charts indispensable for both commercial and recreational vessels.One of the primary advantages of using a Loran chart is its ability to function effectively in poor visibility conditions. Fog, rain, and darkness can severely hinder visual navigation, but with the assistance of Loran systems and corresponding charts, mariners can maintain their bearings. This capability is especially critical in coastal waters where navigational challenges are prevalent.In addition to enhancing safety, the Loran chart also contributes to the efficiency of maritime operations. By providing accurate positioning information, these charts allow vessels to optimize their routes, saving time and fuel. This efficiency is not only beneficial for individual operators but also has positive implications for the shipping industry as a whole, reducing operational costs and environmental impact.Despite the advancements in satellite-based navigation systems like GPS, the Loran chart remains relevant in certain contexts. Some regions may experience limitations with GPS signals due to obstructions or interference, making Loran systems a reliable alternative. Furthermore, the resilience of Loran systems in adverse weather conditions ensures that they can serve as a backup navigation method when needed.In conclusion, the Loran chart is an essential tool for mariners, providing critical information for safe and efficient navigation. Its historical significance and continued relevance highlight the importance of robust navigational methods in the maritime industry. As technology continues to evolve, the Loran chart will likely remain a valuable asset for those navigating the world's oceans, ensuring that sailors can traverse even the most challenging waters with confidence and precision.

导航工具在过去的几年里发生了显著的变化，大大提高了海上旅行的安全性和效率。在这些工具中，Loran chart（罗兰图表）在导航中发挥着至关重要的作用。Loran chart 是一种与 Loran（长距离导航）系统结合使用的导航图，基于超声导航原理。这些图表为海员提供有关其位置的重要信息，并帮助他们安全地穿越各种水域。Loran chart 的发展可以追溯到20世纪初，当时对精确导航的需求变得越来越明显。随着船只开始深入开放水域，传统的导航方法，如推算航法和天文导航，证明不足以应对。无线电导航系统的引入，包括Loran，标志着海上导航的重大突破。Loran chart 通常包括对安全导航至关重要的各种特征。这些特征包括深度轮廓、导航辅助设施和重要地标。通过使用Loran chart，水手可以确定他们相对于已知点的位置，从而更容易绘制航线并避免危险。Loran系统提供的准确性使这些图表对商业和休闲船只不可或缺。使用Loran chart的主要优点之一是它能够在能见度差的条件下有效运作。雾、雨和黑暗会严重妨碍视觉导航，但借助Loran系统和相应的图表，水手可以保持方向感。这种能力在沿海水域尤其关键，因为导航挑战普遍存在。除了增强安全性外，Loran chart 还促进了海上作业的效率。通过提供准确的定位信息，这些图表使船只能够优化其航线，从而节省时间和燃料。这种效率不仅对个别运营商有利，而且对整个航运业也产生积极影响，降低了运营成本和环境影响。尽管卫星导航系统如GPS取得了进展，但在某些情况下，Loran chart 仍然保持相关性。一些地区可能由于障碍物或干扰而面临GPS信号的限制，使得Loran系统成为可靠的替代方案。此外，Loran系统在恶劣天气条件下的韧性确保它们在需要时可以作为备份导航方法。总之，Loran chart 是海员的重要工具，为安全高效的导航提供关键的信息。它的历史意义和持续相关性突显了在海事行业中强大导航方法的重要性。随着技术的不断发展，Loran chart 很可能仍将成为那些航行于世界海洋者的宝贵资产，确保水手能够自信而精准地穿越即使是最具挑战性的水域。