analytic balance

简明释义

1. 分析天秤; 2. 分析天平;

英英释义

例句

1.The analytic balance is essential for quantitative analysis in pharmaceutical research.

在制药研究中，分析天平对于定量分析是必不可少的。

2.To ensure accuracy, it's important to calibrate the analytic balance before each use.

为了确保准确性，在每次使用之前校准分析天平是很重要的。

3.In the chemistry lab, we used an analytic balance to measure the precise mass of the sample for our experiment.

在化学实验室，我们使用了一个分析天平来精确测量样品的质量以进行实验。

4.When working with small quantities, an analytic balance can provide measurements down to the milligram.

在处理小量时，分析天平可以提供精确到毫克的测量。

5.During the lab demonstration, the instructor showed how to properly use the analytic balance.

在实验室演示中，讲师展示了如何正确使用分析天平。

作文

The importance of precision in scientific experiments cannot be overstated. One of the most crucial tools that scientists rely on is the analytic balance. This instrument is designed to measure mass with a high degree of accuracy, often to the nearest milligram or even microgram. The analytic balance is essential in various fields such as chemistry, biology, and material science, where exact measurements are necessary for experimental validity and reproducibility.An analytic balance operates using electromagnetic force restoration, which allows it to provide very precise measurements. When a sample is placed on the balance pan, the instrument calculates the weight by balancing the sample's gravitational force with an electromagnetic force. This process minimizes the influence of environmental factors like air currents and vibrations, ensuring that the readings remain stable and accurate.In a laboratory setting, using an analytic balance involves several important steps. Firstly, the balance must be calibrated regularly to maintain its accuracy. Calibration involves adjusting the balance against known weights to ensure that it provides correct measurements. Once calibrated, the balance should be leveled properly to avoid errors due to uneven surfaces.Before weighing a sample, it is important to use appropriate containers, such as weighing boats or paper, to prevent contamination and ensure that only the sample's mass is measured. When placing the sample on the analytic balance, the user must be cautious to avoid any external disturbances. For instance, drafts from open windows or doors can affect the reading, so it’s best to use the balance in a draft-free environment.The results obtained from an analytic balance can significantly influence the outcome of an experiment. For example, in chemical reactions, the precise amount of reactants can determine the yield and purity of the products. Similarly, in biological studies, accurate measurements of compounds can lead to reliable conclusions about their effects on living organisms. Therefore, the role of the analytic balance extends beyond mere measurement; it is integral to the integrity of scientific research.In conclusion, the analytic balance is an indispensable tool in the scientific world. Its ability to provide precise measurements makes it invaluable in various research applications. Understanding how to properly use and maintain an analytic balance is essential for any scientist who aims to conduct experiments that yield valid and reproducible results. As science continues to advance, the reliance on such precise instruments will only grow, making the analytic balance a cornerstone of modern scientific inquiry.

科学实验中精确度的重要性不容小觑。科学家们依赖的最关键工具之一就是分析天平。这种仪器旨在以极高的准确度测量质量，通常精确到毫克甚至微克。分析天平在化学、生物学和材料科学等多个领域中都是必不可少的，在这些领域中，确切的测量对于实验的有效性和可重复性至关重要。分析天平采用电磁力恢复原理操作，使其能够提供非常精确的测量。当样品放置在天平盘上时，仪器通过平衡样品的重力与电磁力来计算重量。这个过程最大限度地减少了环境因素如气流和振动的影响，确保读数保持稳定和准确。在实验室环境中，使用分析天平涉及几个重要步骤。首先，必须定期校准天平以保持其准确性。校准涉及将天平与已知重量进行调整，以确保其提供正确的测量。一旦校准完成，天平应正确水平放置，以避免由于表面不平整而导致的错误。在称量样品之前，重要的是使用适当的容器，如称量船或纸，以防止污染并确保仅测量样品的质量。在将样品放置在分析天平上时，用户必须小心以避免任何外部干扰。例如，开窗或开门的气流会影响读数，因此最好在无气流的环境中使用天平。从分析天平获得的结果可以显著影响实验的结果。例如，在化学反应中，反应物的精确量可以决定产物的产率和纯度。同样，在生物研究中，化合物的准确测量可以得出有关其对生物体影响的可靠结论。因此，分析天平的作用不仅限于简单的测量；它对科学研究的完整性至关重要。总之，分析天平是科学世界中不可或缺的工具。它提供精确测量的能力使其在各种研究应用中具有重要价值。理解如何正确使用和维护分析天平对于任何希望进行有效且可重复实验的科学家来说都是至关重要的。随着科学的不断进步，对这种精密仪器的依赖只会增加，使得分析天平成为现代科学探究的基石。