half turn astern

简明释义

倒车抵制前进

英英释义

例句

1.In case of an emergency, knowing how to perform a half turn astern is crucial.

在紧急情况下，知道如何执行半转向后是至关重要的。

2.We need to execute a half turn astern to reposition the vessel for docking.

我们需要执行半转向后来重新定位船只以便靠岸。

3.The captain ordered a half turn astern to avoid the approaching storm.

船长下令进行半转向后以避开即将到来的风暴。

4.The pilot instructed the ship to make a half turn astern after spotting the buoy.

在发现浮标后，领航员指示船只进行半转向后。

5.During the drill, the crew practiced a half turn astern maneuver to improve their response time.

在演习中，船员们练习了半转向后的动作，以提高反应时间。

作文

Navigating the vast and unpredictable waters of the sea has always been a challenge for sailors. One of the critical maneuvers that every sailor must master is the ability to turn a vessel effectively. This brings us to the term half turn astern, which refers to a specific maneuver where a ship rotates 180 degrees in the opposite direction. Understanding this maneuver is essential for navigating tight spaces, avoiding obstacles, or changing course rapidly. In this essay, I will explore the importance of the half turn astern maneuver, its applications, and the skills required to execute it successfully.The half turn astern is not just a simple turn; it involves a series of coordinated actions that require skill and precision. When a sailor decides to perform a half turn astern, they must first assess their surroundings. This means looking out for other vessels, land formations, or any hazards that could pose a threat during the maneuver. Safety is paramount, and a well-timed half turn astern can prevent collisions and ensure the safety of both the crew and the vessel.Once the area is deemed safe, the sailor will begin the maneuver by reducing the speed of the vessel. This is crucial because a high speed can make it difficult to control the ship during the turn. The next step involves turning the helm to initiate the rotation. As the ship begins to pivot, the crew must be aware of the forces at play, including wind and current, which can affect the trajectory of the turn. The ability to anticipate these changes is what separates a novice sailor from an experienced one.Another important aspect of executing a half turn astern is communication among the crew. Each member plays a vital role in ensuring the maneuver is carried out smoothly. The captain must convey clear instructions, while crew members must be attentive and ready to respond to any changes. This level of teamwork is essential in making the half turn astern successful, as it creates a synchronized effort that minimizes the risk of error.In addition to safety and teamwork, the half turn astern also has practical applications in various maritime situations. For instance, in busy harbors where space is limited, vessels often need to turn quickly to avoid congestion. The half turn astern allows them to do this efficiently without needing to reverse completely or take a long detour. Furthermore, during emergencies, such as when a ship needs to escape a potential collision, a rapid half turn astern can be a lifesaver.In conclusion, mastering the half turn astern maneuver is a fundamental skill for any sailor. It requires a combination of awareness, communication, and technical skill. By understanding the dynamics involved in this maneuver, sailors can navigate safely and effectively, ensuring the safety of their crew and vessel. The half turn astern is more than just a turn; it is a testament to the art of seamanship and the importance of preparation and teamwork in the unpredictable world of maritime navigation.

在海洋广阔而不可预测的水域中航行，一直以来对水手来说都是一项挑战。每个水手必须掌握的关键操作之一就是有效地转动船只。这让我们提到了术语半转向后，它指的是一项特定的操作，其中船只在相反方向上旋转180度。理解这一操作对于在狭窄的空间中航行、避免障碍物或快速改变航向至关重要。在这篇文章中，我将探讨半转向后操作的重要性、应用以及成功执行所需的技能。半转向后不仅仅是一个简单的转弯；它涉及一系列协调的动作，需要技巧和精确。当水手决定执行半转向后时，他们必须首先评估周围环境。这意味着要注意其他船只、陆地形态或任何可能在操作过程中构成威胁的危险。安全至关重要，一个及时的半转向后可以防止碰撞并确保船员和船只的安全。一旦区域被认为是安全的，水手将通过降低船只速度开始操作。这一点至关重要，因为高速会使船只在转弯期间难以控制。下一步是转动舵来启动旋转。当船只开始转动时，船员必须意识到各种作用力，包括风和水流，这些都会影响转弯的轨迹。能够预测这些变化是区分新手水手与经验丰富的水手的关键。成功执行半转向后的另一个重要方面是船员之间的沟通。每个成员在确保操作顺利进行中都扮演着重要角色。船长必须传达明确的指示，而船员则必须保持专注，随时准备应对任何变化。这种团队合作的程度对于使半转向后成功至关重要，因为它创造了一种同步的努力，最小化了出错的风险。除了安全和团队合作，半转向后在各种海事情况下还有实际应用。例如，在繁忙的港口，空间有限，船只常常需要迅速转弯以避免拥堵。半转向后使他们能够高效完成这一操作，而无需完全倒退或绕远路。此外，在紧急情况下，例如当船只需要逃避潜在碰撞时，快速的半转向后可能会拯救生命。总之，掌握半转向后操作是任何水手的基本技能。它需要意识、沟通和技术技能的结合。通过理解这一操作所涉及的动态，水手可以安全有效地航行，确保其船员和船只的安全。半转向后不仅仅是一个转弯；它是航海艺术的证明，也是准备和团队合作在不可预测的海洋航行世界中的重要性。