dagger board

简明释义

活动披水板

英英释义

例句

1.When the wind picked up, we had to lower the dagger board to prevent capsizing.

当风力增大时，我们不得不放下刀板以防翻船。

2.Before launching the boat, make sure that the dagger board is securely in place.

在发射船只之前，确保刀板安全就位。

3.Adjusting the dagger board can help improve the boat's speed and stability.

调整刀板可以帮助提高船只的速度和稳定性。

4.We learned how to raise and lower the dagger board during our sailing class.

在我们的帆船课程中，我们学习了如何升降刀板。

5.The sailboat's dagger board allows it to sail more efficiently in shallow waters.

这艘帆船的刀板使它在浅水中航行更高效。

作文

The world of sailing is filled with unique terminology and specialized equipment that can be quite fascinating. One such term is dagger board, which refers to a type of retractable keel used in small sailboats. This device plays a crucial role in enhancing the performance and stability of the vessel while navigating through water. Understanding the function and importance of the dagger board can significantly improve one’s sailing experience.A dagger board is typically made of lightweight materials such as fiberglass or wood, designed to be lowered into the water from a slot in the hull of the boat. Unlike fixed keels, which are permanently attached to the hull, the dagger board can be raised or lowered depending on the sailing conditions. This feature allows sailors to adjust the boat's center of gravity and improve its ability to sail upwind. When the dagger board is fully extended, it provides additional lateral resistance, preventing the boat from being pushed sideways by the wind. This is particularly important when racing or when trying to maintain a straight course against strong winds.In addition to improving performance, the dagger board also enhances safety. In shallow waters, sailors can easily raise the board to avoid grounding the boat. This flexibility is one of the reasons why many small sailboats, such as dinghies and catamarans, are equipped with dagger boards. It enables them to navigate in various environments without the risk of damage to the hull.The design of a dagger board can vary significantly among different types of boats. Some are shaped like a fin, while others may resemble a flat plate. The specific shape and size of the board can affect how well the boat performs under different conditions. For instance, a longer and narrower dagger board might provide better performance when sailing upwind, whereas a wider board could offer more stability when sailing downwind.Sailors must also consider the weight distribution on their boats when using a dagger board. Properly balancing the weight helps ensure that the boat remains upright and responsive in the water. When the board is lowered, it can create a significant amount of drag, so understanding how to optimize the use of the dagger board is essential for effective sailing.Moreover, the maintenance of a dagger board is crucial for its longevity and effectiveness. Regular checks for any signs of wear and tear, especially around the pivot point where it is raised and lowered, can prevent potential issues that could arise during a sailing trip. Keeping the board clean and free from barnacles or other marine growth will also help maintain its performance.In conclusion, the dagger board is an indispensable component of many small sailboats, providing both performance enhancements and safety features. By understanding how to use and maintain this vital piece of equipment, sailors can enjoy a more rewarding and efficient sailing experience. Whether you're a novice sailor or an experienced mariner, mastering the use of the dagger board can open up new possibilities on the water, allowing for greater adventure and exploration.

航海的世界充满了独特的术语和专业设备，这些都非常迷人。其中一个术语是dagger board，指的是一种用于小型帆船的可伸缩龙骨。这种装置在提高船只在水中航行时的性能和稳定性方面起着至关重要的作用。理解dagger board的功能和重要性可以显著改善一个人的航海体验。dagger board通常由轻质材料制成，如玻璃纤维或木材，设计为可以从船体的插槽中降低到水中。与固定龙骨不同，固定龙骨是永久附加在船体上的，dagger board可以根据航行条件升降。这一特性使得水手能够调整船只的重心，提高其迎风航行的能力。当dagger board完全伸展时，它提供额外的侧向阻力，防止船只被风推向侧面。这在比赛或试图在强风中保持直线航行时尤其重要。除了提高性能外，dagger board还增强了安全性。在浅水区，水手可以轻松抬起龙骨，以避免搁浅。这种灵活性是许多小型帆船（如小艇和双体船）配备dagger board的原因之一。它使得它们能够在各种环境中航行，而不必担心船体受到损坏。不同类型的船只的dagger board设计可能会有显著差异。有些呈鳍状，有些则可能呈平板状。龙骨的具体形状和大小会影响船只在不同条件下的表现。例如，更长且更窄的dagger board在迎风航行时可能提供更好的性能，而更宽的龙骨在顺风航行时可能提供更多的稳定性。水手在使用dagger board时还必须考虑船上的重量分布。正确平衡重量有助于确保船只在水中保持直立和灵活。当龙骨放下时，它可能会产生显著的阻力，因此理解如何优化dagger board的使用对于有效航行至关重要。此外，维护dagger board对于其耐用性和有效性至关重要。定期检查是否有磨损的迹象，特别是在升降的枢轴点，可以防止在航行过程中出现潜在问题。保持龙骨清洁，避免附着藤壶或其他海洋生物也将有助于保持其性能。总之，dagger board是许多小型帆船不可或缺的组成部分，提供了性能提升和安全特性。通过理解如何使用和维护这项重要设备，水手可以享受更有意义和高效的航海体验。无论你是新手水手还是经验丰富的水手，掌握dagger board的使用都可以为你在水上开启新的可能性，带来更多的冒险和探索。