under keel clearance

简明释义

富裕水深龙骨下富裕水深

英英释义

例句

1.The captain checked the under keel clearance before entering the shallow harbor.

船长在进入浅水港口之前检查了吃水深度。

2.A sufficient under keel clearance is essential to avoid grounding.

足够的吃水深度对于避免搁浅至关重要。

3.Before navigating through the channel, the crew calculated the under keel clearance carefully.

在通过航道之前，船员仔细计算了吃水深度。

4.Monitoring the under keel clearance is crucial during low tide.

在低潮期间监测吃水深度是至关重要的。

5.The pilot advised that the under keel clearance was adequate for the vessel's size.

引航员建议该船的吃水深度对船只的大小是足够的。

作文

The term under keel clearance refers to the vertical distance between the bottom of a ship's keel and the seabed. This measurement is crucial for ensuring that a vessel can safely navigate through various waterways without running aground. Understanding under keel clearance is essential for mariners, as it directly affects the safety and efficiency of maritime operations. When planning a voyage, sailors must take into account the draft of their vessel, which is the depth of water needed to float the ship. The under keel clearance becomes particularly important in shallow waters, where the margin for error is minimal. To maintain adequate under keel clearance, navigators often rely on charts and tide tables. These resources provide vital information about water levels, allowing mariners to anticipate changes due to tidal movements or other environmental factors. For instance, during low tide, the under keel clearance may decrease significantly, posing a risk to vessels with deeper drafts. Therefore, understanding the interplay between tide cycles and under keel clearance is critical for safe navigation.In addition to tidal considerations, the type of seabed also plays a role in determining under keel clearance. Different seabeds, such as mud, sand, or rock, can affect how a vessel interacts with the bottom. A ship may experience different levels of drag or resistance based on the composition of the seabed, which can influence its maneuverability and speed. Mariners must be aware of these factors when calculating the necessary under keel clearance to ensure smooth sailing.Another aspect to consider is the vessel’s loading condition. As a ship takes on cargo, its draft increases, which can reduce the under keel clearance. Therefore, before entering shallow waters, it is essential for captains to assess the weight of the cargo and adjust their plans accordingly. In some cases, they may choose to lighten the load or wait for a higher tide to ensure sufficient under keel clearance.Moreover, technological advancements have improved the ability to measure and monitor under keel clearance. Modern sonar systems and underwater drones can provide real-time data about the seabed and water depths, allowing for more precise navigation. This technology enhances safety and reduces the likelihood of grounding incidents, which can be costly and dangerous.In summary, under keel clearance is a fundamental concept in maritime navigation that encompasses various factors, including vessel draft, tidal influences, seabed composition, and loading conditions. By understanding and managing under keel clearance, mariners can ensure safer passage through challenging waterways. As the shipping industry continues to evolve, the importance of this measurement will remain paramount, underscoring the need for continuous education and awareness among seafarers. Ultimately, successful navigation hinges on the careful consideration of under keel clearance and its implications for maritime safety.

‘船底净空’指的是船底龙骨与海床之间的垂直距离。这个测量对于确保船只能够安全地在各种水道中航行而不搁浅至关重要。理解‘船底净空’对水手来说是必不可少的，因为它直接影响到海上作业的安全性和效率。在规划航行时，水手必须考虑到船只的吃水深度，即浮动船只所需的水深。‘船底净空’在浅水区尤为重要，因为错误的余量非常小。为了保持足够的‘船底净空’，导航员通常依赖于海图和潮汐表。这些资源提供了有关水位的重要信息，使水手能够预见因潮汐变化或其他环境因素而导致的变化。例如，在退潮期间，‘船底净空’可能会显著减少，给深吃水的船只带来风险。因此，理解潮汐周期与‘船底净空’之间的相互作用对于安全航行至关重要。除了潮汐因素外，海床的类型也在确定‘船底净空’方面发挥着作用。不同的海床，如泥土、沙子或岩石，会影响船只与底部的互动。根据海床的组成，船只可能会经历不同程度的阻力或阻力，这会影响其机动性和速度。水手在计算所需的‘船底净空’时，必须意识到这些因素，以确保航行顺利。另一个需要考虑的方面是船只的装载状态。当船只装载货物时，其吃水深度增加，这可能会降低‘船底净空’。因此，在进入浅水区之前，船长必须评估货物的重量，并相应调整他们的计划。在某些情况下，他们可能会选择减轻负载或等待更高的潮位，以确保足够的‘船底净空’。此外，技术进步改善了测量和监测‘船底净空’的能力。现代声纳系统和水下无人机可以提供关于海床和水深的实时数据，从而实现更精确的导航。这项技术提高了安全性，减少了搁浅事件的可能性，而搁浅事件可能代价高昂且危险。总之，‘船底净空’是海上导航中的一个基本概念，涉及多种因素，包括船只吃水、潮汐影响、海床组成和装载条件。通过理解和管理‘船底净空’，水手可以确保在具有挑战性的水道中安全通行。随着航运业的不断发展，这一测量的重要性将继续保持，强调了水手持续教育和意识的必要性。最终，成功的导航依赖于对‘船底净空’及其对海上安全影响的仔细考虑。