Decca indicator

简明释义

台卡指示器

英英释义

例句

1.Using the Decca indicator, the crew was able to avoid potential hazards in the water.

利用Decca indicator，船员能够避免水中的潜在危险。

2.The Decca indicator is crucial for maritime navigation, especially in areas with poor visibility.

Decca indicator 对于海洋导航至关重要，尤其是在能见度差的地方。

3.During the navigation training, we learned how to interpret signals from the Decca indicator for accurate positioning.

在航海训练中，我们学习了如何解读来自Decca indicator 的信号以实现精确定位。

4.The sailor adjusted the ship's course using the Decca indicator to ensure they stayed on the right path.

水手使用Decca indicator 调整船只航向，以确保他们保持在正确的路径上。

5.The Decca indicator provides real-time data that helps in determining the vessel's location.

Decca indicator 提供实时数据，有助于确定船只的位置。

作文

The world of navigation has undergone significant transformations over the years, particularly with the advent of advanced technologies. One of the notable advancements in maritime navigation is the use of the Decca indicator, a crucial tool that has helped sailors and navigators pinpoint their locations accurately on the sea. The Decca indicator operates through a system that uses radio waves transmitted from a network of shore stations. By triangulating these signals, it allows users to determine their position with remarkable precision. This technology was particularly popular in the mid-20th century and played an essential role in both commercial and military navigation.Understanding the Decca indicator requires a basic grasp of how it works. The system consists of a series of fixed transmitters that send out signals at specific frequencies. A receiver on the vessel picks up these signals and calculates the time it takes for each signal to arrive. By knowing the speed of light, the device can then determine the distance from each transmitter. With signals from multiple transmitters, the Decca indicator can triangulate the ship's position on a nautical chart. This method of navigation was revolutionary at the time, as it allowed for greater accuracy than previous systems, such as dead reckoning, which relied heavily on estimates and calculations based on speed and direction.The significance of the Decca indicator extends beyond mere navigation. It represents a shift in how we understand positioning and movement across vast distances. Before the implementation of such technologies, navigating the open seas was fraught with uncertainty. Sailors had to rely on celestial navigation, using the stars and sun to guide them. However, the Decca indicator provided a more reliable means of determining location, thus reducing the risks associated with maritime travel.Moreover, the Decca indicator also paved the way for further technological innovations in navigation. As the need for more precise and reliable navigation tools grew, advancements continued to emerge. The principles behind the Decca indicator laid the groundwork for later developments, including GPS technology, which has now become the standard in navigation not only for maritime purposes but also for aviation and ground transportation.In contemporary times, while the Decca indicator may not be as widely used due to the prevalence of satellite-based systems, its legacy remains significant. It serves as a reminder of the ingenuity and creativity that have driven human exploration and innovation. The evolution of navigation technology reflects our desire to connect with the world around us and to explore the unknown.In conclusion, the Decca indicator is more than just a piece of equipment; it symbolizes a pivotal moment in the history of navigation. Its introduction marked a shift towards more scientific and accurate methods of determining location at sea. As we continue to advance technologically, it is essential to acknowledge the contributions of earlier innovations like the Decca indicator, which have shaped the way we navigate our world today.

导航的世界在多年来经历了显著的变革，尤其是随着先进技术的出现。其中一个显著的海洋导航进步是使用Decca指示器，这是一种关键工具，帮助水手和导航员准确地确定他们在海上的位置。Decca指示器通过一个使用从岸站网络发射的无线电波的系统来操作。通过三角测量这些信号，它允许用户以惊人的精确度确定他们的位置。这项技术在20世纪中期特别受欢迎，并在商业和军事导航中发挥了重要作用。理解Decca指示器需要对其工作原理有基本的了解。该系统由一系列固定的发射器组成，这些发射器以特定频率发送信号。船上的接收器接收这些信号，并计算每个信号到达所需的时间。通过知道光速，设备可以确定与每个发射器的距离。通过多个发射器的信号，Decca指示器可以在海图上三角测量船只的位置。这种导航方法在当时是革命性的，因为它比之前的系统（如推算法）提供了更大的准确性，后者严重依赖于基于速度和方向的估计和计算。Decca指示器的重要性不仅仅体现在导航上。它代表了我们对跨越广阔距离的定位和移动的理解的转变。在实施这样的技术之前，导航开放海域是充满不确定性的。水手必须依靠天文导航，利用星星和太阳来引导他们。然而，Decca指示器提供了一种更可靠的确定位置的方法，从而减少了与海洋旅行相关的风险。此外，Decca指示器还为进一步的导航技术创新铺平了道路。随着对更精确和可靠的导航工具需求的增长，进步不断涌现。Decca指示器背后的原理为后来的发展奠定了基础，包括如今已成为海洋、航空和陆地运输标准的GPS技术。在当代，虽然由于卫星系统的普遍存在，Decca指示器可能不再被广泛使用，但它的遗产仍然具有重要意义。它提醒我们人类探索和创新的智慧和创造力。导航技术的演变反映了我们与周围世界连接和探索未知的愿望。总之，Decca指示器不仅仅是一件设备；它象征着导航历史中的一个关键时刻。它的引入标志着向更科学和准确的方法确定海上位置的转变。随着我们继续在技术上进步，重要的是要承认早期创新的贡献，如Decca指示器，这些创新塑造了我们今天导航世界的方式。