measuring flask

简明释义

量瓶

英英释义

例句

1.After mixing the chemicals, transfer the solution into a measuring flask 量筒 for accurate volume measurement.

混合化学品后，将溶液转移到measuring flask 量筒中以进行准确的体积测量。

2.Always read the meniscus at eye level when using a measuring flask 量筒.

使用measuring flask 量筒时，总是要在眼平水平读取弯月面。

3.A measuring flask 量筒 is essential for precise measurements in laboratory work.

在实验室工作中，measuring flask 量筒对于精确测量是必不可少的。

4.The chemist filled the measuring flask 量筒 with distilled water for the experiment.

化学家为实验将蒸馏水倒入measuring flask 量筒中。

5.To prepare the solution accurately, you should use a measuring flask 量筒 to ensure the right volume.

为了准确准备溶液，你应该使用一个measuring flask 量筒以确保正确的体积。

作文

In the world of science, precision and accuracy are paramount. One of the essential tools that scientists use to achieve these goals is the measuring flask. A measuring flask is a laboratory glassware item designed to contain a specific volume of liquid. It is typically made of glass or plastic and has a narrow neck with a flat bottom. This design allows for precise measurements and easy mixing of solutions, making it an indispensable tool in chemistry, biology, and other scientific fields.The measuring flask comes in various sizes, ranging from small flasks that hold just a few milliliters to larger ones that can contain several liters. Each flask is marked with graduation lines to indicate the volume of liquid inside. This feature is crucial because even a slight deviation in measurement can lead to significant errors in experiments. For instance, in a titration experiment, using a measuring flask ensures that the exact amount of reactant is used, which can affect the outcome of the reaction and the accuracy of the results.Moreover, the measuring flask is often used in preparing solutions. When dissolving a solute in a solvent, it is essential to have a precise volume of solvent to achieve the desired concentration. By using a measuring flask, researchers can accurately measure the solvent and ensure that the solution is prepared correctly. This is particularly important in pharmaceuticals, where the concentration of a drug can significantly impact its efficacy and safety.In addition to its use in measuring and mixing liquids, the measuring flask also plays a role in teaching and demonstrating scientific principles. In educational settings, teachers often use measuring flasks to illustrate concepts such as density, concentration, and chemical reactions. The visual representation of measurements helps students grasp these concepts more effectively. Furthermore, hands-on experience with a measuring flask allows students to develop their practical skills and understand the importance of precision in scientific work.It is worth noting that while the measuring flask is a valuable tool, it must be used correctly to ensure accurate results. Users should always read the meniscus at eye level to avoid parallax errors, and they should handle the flask carefully to prevent spills or breakage. Additionally, cleaning the measuring flask properly after each use is crucial to avoid contamination, which could skew experimental results.In conclusion, the measuring flask is a fundamental instrument in scientific research and education. Its ability to provide precise measurements makes it vital for conducting experiments, preparing solutions, and teaching scientific concepts. By understanding how to use a measuring flask effectively, scientists and students alike can enhance their work and contribute to the advancement of knowledge in their respective fields. Whether in a laboratory or a classroom, the measuring flask remains an essential tool for achieving accuracy and precision in science.

在科学世界中，精确和准确是至关重要的。科学家们用来实现这些目标的基本工具之一就是量筒。量筒是一种实验室玻璃器皿，设计用于容纳特定体积的液体。它通常由玻璃或塑料制成，具有窄颈和平底的设计。这种设计允许进行精确测量和轻松混合溶液，使其成为化学、生物学和其他科学领域不可或缺的工具。

量筒有各种大小，从只容纳几毫升的小型量筒到可以容纳几升的大型量筒。每个量筒上都有刻度线，指示内部液体的体积。这一特性至关重要，因为即使是微小的测量偏差也可能导致实验中的重大错误。例如，在滴定实验中，使用量筒可以确保使用准确的反应物量，这会影响反应的结果和结果的准确性。

此外，量筒还常用于制备溶液。当将溶质溶解在溶剂中时，必须具有精确的溶剂体积以达到所需的浓度。通过使用量筒，研究人员可以准确测量溶剂，并确保正确制备溶液。这在制药行业尤其重要，因为药物的浓度会显著影响其有效性和安全性。

除了在测量和混合液体方面的应用，量筒还在教学和演示科学原理方面发挥作用。在教育环境中，教师经常使用量筒来说明诸如密度、浓度和化学反应等概念。测量的可视化表示帮助学生更有效地掌握这些概念。此外，亲自使用量筒使学生能够培养他们的实践技能，并理解精确性在科学工作中的重要性。

值得注意的是，虽然量筒是一个有价值的工具，但必须正确使用它以确保准确的结果。用户应始终在眼平线读取液面，以避免视差误差，并应小心处理量筒以防止溢出或破损。此外，在每次使用后正确清洁量筒对于避免污染至关重要，因为污染可能会扭曲实验结果。

总之，量筒是科学研究和教育中的基本工具。它提供精确测量的能力，使其在进行实验、制备溶液和教授科学概念方面至关重要。通过了解如何有效使用量筒，科学家和学生都可以提高他们的工作水平，并为各自领域的知识进步做出贡献。无论是在实验室还是教室，量筒仍然是实现科学准确性和精确性的必备工具。