measuring cylinder

简明释义

量筒

英英释义

例句

1.He poured the liquid into the measuring cylinder to check the exact amount needed.

他把液体倒入量筒中，以检查所需的确切数量。

2.A measuring cylinder is essential for any precise scientific measurement.

在任何精确的科学测量中，量筒是必不可少的。

3.The chemistry lab required each student to have their own measuring cylinder for experiments.

化学实验室要求每个学生都有自己的量筒进行实验。

4.To measure the volume of water accurately, we used a measuring cylinder.

为了准确测量水的体积，我们使用了一个量筒。

5.We filled the measuring cylinder with 50 milliliters of oil for the experiment.

我们为实验在量筒中加入了50毫升的油。

作文

In the world of science, precision is key. Whether conducting experiments in a laboratory or measuring out ingredients in a kitchen, having the right tools is essential for achieving accurate results. One such tool that is widely used in laboratories is the measuring cylinder. A measuring cylinder (量筒) is a tall, cylindrical container marked with graduated measurements on its side, allowing for the precise measurement of liquid volumes. This instrument is invaluable in various scientific fields, including chemistry, biology, and physics.The design of a measuring cylinder is straightforward yet effective. Typically made from glass or clear plastic, it features a spout for easy pouring. The graduated markings on the side help users read the volume of liquid accurately. When using a measuring cylinder, it is important to take readings at eye level to avoid parallax errors, which can lead to inaccurate measurements. This attention to detail is crucial when conducting experiments where precise quantities of liquids are required.One of the primary advantages of using a measuring cylinder is its ability to hold larger volumes of liquid compared to other measuring tools, such as beakers or test tubes. This makes it ideal for experiments that require the mixing or measuring of significant amounts of liquid. For example, in a chemistry experiment where different solutions need to be combined, a measuring cylinder allows for accurate measurements of each solution before mixing.Moreover, a measuring cylinder can be used to determine the density of a liquid. By measuring a specific volume of liquid and weighing it, scientists can calculate the density by dividing the mass by the volume. This application is particularly useful in chemistry and materials science, where understanding the properties of substances is crucial.In addition to its use in laboratories, a measuring cylinder is also found in educational settings. Science teachers often use this tool to demonstrate principles of measurement and fluid dynamics to students. By engaging students in hands-on experiments that involve a measuring cylinder, educators can enhance their understanding of scientific concepts and foster a love for experimentation.However, while the measuring cylinder is a valuable tool, it is not without limitations. For instance, it is not suitable for measuring very small volumes of liquid, as the graduated markings may not provide enough precision. In such cases, tools like pipettes or burettes might be more appropriate. Additionally, the measuring cylinder is primarily designed for liquids; measuring solid substances would require different equipment.In conclusion, the measuring cylinder (量筒) is an essential instrument in the realm of science and education. Its ability to provide accurate measurements of liquid volumes makes it a staple in laboratories and classrooms alike. Understanding how to properly use a measuring cylinder is fundamental for anyone involved in scientific research or education. As we continue to explore the wonders of science, tools like the measuring cylinder will remain indispensable in our quest for knowledge.

在科学世界中，精确性是关键。无论是在实验室进行实验还是在厨房中测量配料，拥有正确的工具对于实现准确的结果至关重要。其中一种在实验室广泛使用的工具是measuring cylinder（量筒）。measuring cylinder是一种高而圆柱形的容器，侧面标有刻度，可以精确测量液体体积。这种仪器在化学、生物和物理等多个科学领域中都是不可或缺的。measuring cylinder的设计简单而有效。通常由玻璃或透明塑料制成，带有一个便于倒液的喷嘴。侧面的刻度标记帮助用户准确读取液体的体积。在使用measuring cylinder时，重要的是要在眼平视高度进行读数，以避免视差误差，这可能导致测量不准确。在需要精确液体数量的实验中，这种对细节的关注至关重要。使用measuring cylinder的主要优点之一是它能够容纳比其他测量工具（如烧杯或试管）更大的液体体积。这使得它非常适合需要混合或测量大量液体的实验。例如，在化学实验中，当需要将不同的溶液混合时，measuring cylinder可以在混合之前准确测量每种溶液。此外，measuring cylinder还可以用来确定液体的密度。通过测量特定体积的液体并称重，科学家可以通过将质量除以体积来计算密度。这一应用在化学和材料科学中尤为重要，因为了解物质的性质至关重要。除了在实验室中的应用，measuring cylinder还常见于教育场所。科学教师经常使用该工具向学生演示测量和流体动力学的原理。通过让学生参与涉及measuring cylinder的实践实验，教育工作者可以增强他们对科学概念的理解，并培养对实验的热爱。然而，虽然measuring cylinder是一种有价值的工具，但也并非没有局限性。例如，它不适合测量非常小的液体体积，因为刻度标记可能无法提供足够的精确度。在这种情况下，像移液管或滴定管这样的工具可能更为合适。此外，measuring cylinder主要设计用于液体；测量固体物质则需要不同的设备。总之，measuring cylinder（量筒）是科学和教育领域中必不可少的仪器。它提供准确的液体体积测量，使其成为实验室和教室的基础工具。理解如何正确使用measuring cylinder是任何参与科学研究或教育的人都必须掌握的基本技能。随着我们继续探索科学的奥秘，像measuring cylinder这样的工具将在我们追求知识的过程中始终不可或缺。