back sight

简明释义

过天顶测天;瞄准器

英英释义

例句

1.The surveyor adjusted the instrument and aligned it with the back sight for accurate readings.

测量员调整仪器并与后视对齐，以获得准确的读数。

2.The architect explained that the back sight helps in aligning the new structure with existing landmarks.

建筑师解释说，后视有助于将新结构与现有地标对齐。

3.To ensure precision, the team always double-checks the back sight before starting their measurements.

为了确保精确，团队在开始测量之前总是会仔细检查后视。

4.In topographical surveys, the back sight is crucial for determining elevation changes.

在地形测量中，后视对于确定高度变化至关重要。

5.When surveying land, the engineer took a measurement using the back sight to establish a reference point.

在测量土地时，工程师使用后视进行测量，以建立参考点。

作文

In the field of surveying, the term back sight refers to a specific technique used to establish a reference point for measuring elevations and distances. When a surveyor sets up a level instrument, they often use a back sight to view a previously established benchmark or point. This process is crucial because it allows the surveyor to determine the height of the instrument relative to that reference point. By doing so, they can ensure accuracy in their measurements, which is essential for any construction or land development project.The importance of using a back sight cannot be overstated. It serves as a foundation for all subsequent measurements taken with the leveling instrument. Without a reliable back sight, the integrity of the entire surveying process could be compromised. For instance, if a surveyor fails to accurately set their back sight, all measurements taken afterward could be off, leading to potential errors in construction plans and ultimately affecting the safety and stability of structures.Using a back sight involves several steps. First, the surveyor must identify a suitable point that has already been measured and marked. This point is usually a stable and easily identifiable landmark. Once the back sight point is selected, the surveyor then aligns their instrument to view this point. The reading taken from the back sight will provide a baseline elevation that can be used to calculate other heights in the area.Moreover, the concept of back sight is not limited to just surveying. It can also be applied metaphorically in various aspects of life. For example, in personal development, one might reflect on past experiences as a back sight to help navigate future decisions. Just like in surveying, where looking back at a known point provides clarity for moving forward, reflecting on our past can guide us in making better choices.In conclusion, the term back sight is integral to the practice of surveying, providing a necessary reference point for accurate measurements. It emphasizes the importance of having a solid foundation in any endeavor, whether it be construction, personal growth, or any other aspect of life. Understanding how to utilize a back sight effectively can lead to greater precision and success in various fields. Therefore, whether you are a professional surveyor or someone seeking to improve your decision-making skills, the principle behind the back sight is a valuable lesson that can be applied universally.

在测量领域，术语back sight指的是一种特定的技术，用于建立测量高程和距离的参考点。当测量员设置水平仪器时，他们通常会使用back sight来查看先前建立的基准点或点。这个过程至关重要，因为它允许测量员确定仪器相对于该参考点的高度。通过这样做，他们可以确保测量的准确性，这对于任何建筑或土地开发项目都是必不可少的。使用back sight的重要性不容小觑。它作为所有后续测量的基础。如果没有可靠的back sight，整个测量过程的完整性可能会受到损害。例如，如果测量员未能准确设置他们的back sight，那么之后进行的所有测量都可能出现偏差，从而导致建筑计划中的潜在错误，并最终影响结构的安全性和稳定性。使用back sight涉及几个步骤。首先，测量员必须识别一个合适的点，该点已经被测量和标记。这个点通常是一个稳定且容易识别的地标。一旦选择了back sight点，测量员就会对齐他们的仪器以查看这个点。从back sight处获得的读数将提供一个基线高程，可以用来计算该区域内的其他高度。此外，back sight的概念不仅限于测量。它还可以在生活的各个方面隐喻性地应用。例如，在个人发展中，人们可能会反思过去的经历作为back sight，以帮助导航未来的决策。就像在测量中，回顾一个已知点提供了前进的清晰度一样，反思我们的过去可以指导我们做出更好的选择。总之，术语back sight是测量实践中不可或缺的一部分，为准确测量提供必要的参考点。它强调在任何努力中拥有坚实基础的重要性，无论是建筑、个人成长还是生活的其他方面。理解如何有效利用back sight可以在各个领域带来更大的精确性和成功。因此，无论您是专业测量员还是希望改善决策能力的人，back sight背后的原则都是一个可以普遍应用的宝贵经验。