ship apparent time

简明释义

船视时

英英释义

例句

1.To ensure accurate positioning, the crew frequently checks the ship apparent time.

为了确保定位准确，船员们经常检查船舶显现时间。

2.The logbook recorded the ship apparent time at every hour.

航海日志每小时记录一次船舶显现时间。

3.Understanding ship apparent time is crucial for celestial navigation.

理解船舶显现时间对天文导航至关重要。

4.The captain adjusted the ship's navigation based on the ship apparent time.

船长根据船舶显现时间调整了船只的导航。

5.The crew synchronized their watches to the ship apparent time before departure.

出发前，船员们将手表与船舶显现时间同步。

作文

The concept of ship apparent time refers to the time that is observed on a ship, which is adjusted according to the local solar time. This means that the time shown on the ship's clock is based on the position of the sun in the sky rather than a standardized time zone. Understanding ship apparent time is crucial for navigators and those involved in maritime activities, as it helps them determine their exact position at sea and make necessary adjustments to their course. Navigators have relied on solar observations for centuries. Before the advent of modern technology, sailors used tools such as sextants and chronometers to measure the angle of the sun above the horizon. By knowing the precise time of day indicated by the sun’s position, sailors could accurately calculate their latitude and longitude. The ship apparent time plays a vital role in this process, as it provides a reference point for these calculations.In practical terms, ship apparent time can differ significantly from the local time on land. This discrepancy arises because ships often travel across different time zones and experience variations in daylight due to their geographical location. For instance, if a ship sails westward, the sun will appear to rise later compared to the time observed on land. Hence, the crew must adjust their clocks to reflect the ship apparent time to ensure accurate navigation and communication with other vessels and coastal stations.Moreover, the importance of ship apparent time extends beyond navigation. It also influences various operational aspects on board. For example, the scheduling of meals, watch changes, and other daily activities may be organized around ship apparent time to maintain a routine that aligns with the natural rhythms of day and night as experienced by the crew. This synchronization is essential for the well-being and efficiency of the crew, especially during long voyages.The calculation of ship apparent time involves understanding the equation of time, which accounts for the irregularities in Earth’s orbit and axial tilt. Navigators must also consider the local meridian, which is the line of longitude that passes through the ship's current position. By applying these principles, they can convert standard time to ship apparent time accurately.In conclusion, ship apparent time is not just a technical term used in maritime navigation; it is an essential aspect of life at sea. It enables sailors to navigate effectively, maintain schedules, and operate safely in the vast ocean. As technology continues to evolve, the fundamental principles surrounding ship apparent time remain relevant, reminding us of the longstanding relationship between humanity and the sea. Whether using traditional methods or modern GPS systems, understanding ship apparent time will always be a cornerstone of successful maritime operations.

“船上显时”这一概念指的是在船上观察到的时间，这个时间是根据当地的太阳时间进行调整的。这意味着船上的时钟所显示的时间是基于太阳在天空中的位置，而不是标准化的时区。理解“船上显时”对于导航员和参与海事活动的人至关重要，因为它帮助他们确定在海上的确切位置，并对航向做出必要的调整。导航员们几个世纪以来一直依赖太阳观测。在现代科技出现之前，水手们使用六分仪和精密计时器等工具来测量太阳在地平线上的角度。通过知道太阳位置所指示的确切时间，水手们可以准确计算出他们的纬度和经度。“船上显时”在这个过程中发挥着至关重要的作用，因为它提供了这些计算的参考点。在实际操作中，“船上显时”可能与陆地上的当地时间有显著差异。这种差异的产生是因为船只经常穿越不同的时区，并因其地理位置而经历白昼的变化。例如，如果一艘船向西航行，太阳会比陆地上的时间晚一些升起。因此，船员必须调整他们的时钟，以反映“船上显时”，以确保导航和与其他船只及沿海站的通信的准确性。此外，“船上显时”的重要性不仅限于导航。它还影响船上的各种操作方面。例如，餐食、值班更换和其他日常活动的安排可能围绕“船上显时”进行组织，以保持与船员所经历的昼夜自然节奏相一致的日常生活。这种同步对于船员的身心健康和效率至关重要，尤其是在长途航行期间。计算“船上显时”涉及了解时间方程，该方程考虑了地球轨道和轴倾斜的不规则性。导航员还必须考虑当地子午线，即通过船只当前位置的经线。通过应用这些原理，他们可以准确地将标准时间转换为“船上显时”。总之，“船上显时”不仅仅是一个用于海洋导航的技术术语；它是海上生活的一个重要方面。它使水手能够有效导航，维持日程，并在广阔的海洋中安全操作。随着科技的不断发展，围绕“船上显时”的基本原则仍然相关，提醒我们人类与海洋之间的悠久关系。无论是使用传统方法还是现代GPS系统，理解“船上显时”始终是成功海事操作的基石。