hand rule

简明释义

手定则

英英释义

例句

1.When budgeting, a common hand rule is the 50/30/20 rule for expenses.

在预算时，一个常见的手头规则是50/30/20支出法则。

2.The hand rule for estimating distances is to use your thumb at arm's length.

估算距离的手头规则是将拇指伸直到臂长。

3.As a general hand rule, you should always check your work before submitting it.

作为一个一般的手头规则，你应该在提交工作之前总是检查你的工作。

4.A simple hand rule for measuring ingredients is to use equal parts by volume.

测量成分的简单手头规则是按体积使用相等的部分。

5.In cooking, a good hand rule is to add a pinch of salt for every cup of water.

在烹饪中，一个好的手头规则是每杯水加一撮盐。

作文

In various fields, there are often guidelines or principles that help individuals make decisions or solve problems effectively. One such principle is known as the hand rule, which serves as a practical method for estimating measurements or making quick calculations without the need for complex tools. The term hand rule refers to using one’s hands as a reference point to gauge distances or angles, allowing for immediate and intuitive assessments. This concept is particularly useful in scenarios where precision is not paramount, but a general understanding is required.For instance, in woodworking, craftsmen frequently employ the hand rule to determine the length of a piece of wood. By measuring with their hands, they can quickly estimate the size needed for a project without needing to reach for a tape measure every time. Similarly, in navigation, sailors might use the hand rule to calculate the angle of the sun or stars relative to the horizon, aiding in their journey across vast oceans.Moreover, the hand rule can also extend beyond physical measurements. In everyday life, individuals often rely on this principle to make quick judgments about situations. For example, when deciding whether to attend an event, one might weigh the pros and cons based on gut feelings or past experiences rather than conducting extensive research. This instinctive approach can be seen as a form of the hand rule, where personal experience acts as a guiding factor in decision-making.In education, teachers sometimes encourage students to use the hand rule in mathematics. When faced with complex equations, students can simplify their calculations by rounding numbers to the nearest ten or hundred, making it easier to grasp the overall concept without getting bogged down by minute details. This technique allows learners to build confidence in their problem-solving abilities while still achieving reasonably accurate results.However, it is essential to recognize the limitations of the hand rule. While it can provide quick estimates, relying solely on this method may lead to inaccuracies in situations where precision is critical. For example, in engineering or scientific research, exact measurements are crucial, and the hand rule may not suffice. Therefore, it is vital to understand when to utilize this principle and when to rely on more precise tools and methods.In conclusion, the hand rule serves as a valuable tool in various aspects of life, from practical tasks like woodworking and navigation to everyday decision-making. It embodies the idea that sometimes, simple methods can yield effective results. Nonetheless, it is important to balance the use of the hand rule with an awareness of its limitations, ensuring that we employ appropriate techniques based on the context at hand. By mastering the hand rule, individuals can enhance their ability to navigate both practical challenges and life’s complexities with greater ease and confidence.

在各个领域，通常都有一些指导方针或原则，帮助个人有效地做出决策或解决问题。其中一个原则被称为手法规则，它作为一种实用的方法，用于估计测量或进行快速计算，而不需要复杂的工具。术语手法规则指的是使用自己的手作为参考点来衡量距离或角度，从而允许立即和直观的评估。这个概念在对精确度要求不高但需要一般理解的场景中特别有用。例如，在木工中，工匠们经常采用手法规则来确定一块木头的长度。通过用手测量，他们可以快速估算出项目所需的尺寸，而无需每次都去拿卷尺。同样，在导航中，水手可能会利用手法规则来计算太阳或星星相对于地平线的角度，帮助他们在广阔的海洋中航行。此外，手法规则也可以超越物理测量。在日常生活中，个人常常依赖这一原则快速判断情况。例如，在决定是否参加某个活动时，人们可能会根据直觉或过去的经验权衡利弊，而不是进行广泛的研究。这种本能的方法可以视为一种手法规则，个人经验在决策中起到指导作用。在教育中，教师有时鼓励学生在数学中使用手法规则。当面对复杂的方程时，学生可以通过将数字四舍五入到最接近的十或百来简化计算，从而更容易掌握整体概念，而不会被细节困扰。这种技巧使学习者能够在问题解决能力上建立信心，同时仍然获得相对准确的结果。然而，重要的是要认识到手法规则的局限性。虽然它可以提供快速的估算，但在对精确度至关重要的情况下，仅依靠这种方法可能会导致不准确。例如，在工程或科学研究中，精确的测量是至关重要的，而手法规则可能不够。因此，了解何时使用这一原则以及何时依赖更精确的工具和方法至关重要。总之，手法规则在生活的各个方面都作为一种有价值的工具，从木工和导航等实际任务到日常决策。它体现了这样一个理念：有时候，简单的方法可以产生有效的结果。尽管如此，重要的是在使用手法规则时保持对其局限性的意识，确保我们根据具体上下文采用适当的技术。通过掌握手法规则，个人可以提升他们应对实际挑战和生活复杂性的能力，变得更加轻松自信。