test tube

简明释义

试管

英英释义

例句

1.The scientist carefully placed the chemical in a test tube.

科学家小心地将化学物质放入一个试管中。

2.The test tube was filled with a bright blue liquid.

这个试管里装满了一种亮蓝色的液体。

3.We need to label each test tube with the sample name.

我们需要在每个试管上标注样本名称。

4.Make sure to use a clean test tube for the experiment.

确保在实验中使用一个干净的试管。

5.After mixing, observe the reaction in the test tube.

混合后，观察试管中的反应。

作文

The test tube is an essential piece of laboratory equipment that has been used for centuries in scientific experiments. It is a small, cylindrical container made of glass or plastic, designed to hold liquids and facilitate various chemical reactions. The invention of the test tube revolutionized the field of chemistry and biology, allowing scientists to conduct experiments with precision and safety. In this essay, I will explore the significance of the test tube in scientific research and education, its various applications, and the impact it has had on modern science.Firstly, the test tube serves as a fundamental tool in the laboratory. Its design allows for easy mixing and observation of chemical reactions. For instance, when a scientist wants to combine two substances to observe their reaction, the test tube provides a controlled environment where the reactions can occur without any external interference. This ability to isolate variables is crucial in scientific experiments, as it helps researchers draw accurate conclusions from their observations.Moreover, the test tube is instrumental in educational settings. Science classes often utilize test tubes for hands-on experiments, allowing students to engage with scientific concepts actively. Through these practical experiences, students learn about chemical properties, reactions, and the scientific method. The tactile nature of working with test tubes enhances understanding, making abstract theories more tangible and relatable.In addition to education, test tubes have numerous applications in various fields, including medicine and environmental science. In medical laboratories, test tubes are used for blood tests, where samples are collected and analyzed to diagnose diseases. The ability to conduct tests in test tubes enables healthcare professionals to identify health issues quickly and accurately, ultimately saving lives.Environmental scientists also rely on test tubes to assess water quality and soil samples. By analyzing contaminants in these samples, researchers can monitor pollution levels and develop strategies to protect ecosystems. The versatility of the test tube makes it an invaluable tool in addressing some of the most pressing environmental challenges we face today.Furthermore, the innovation surrounding test tubes has led to the development of specialized types, such as those designed for specific experiments or materials. For example, some test tubes are made from borosilicate glass, which can withstand high temperatures and sudden temperature changes. This property is particularly useful in experiments that involve heating substances, as it prevents breakage and ensures safety in the lab.In conclusion, the test tube is more than just a simple piece of glassware; it is a cornerstone of scientific inquiry and discovery. Its role in facilitating experiments, enhancing education, and contributing to advancements in medicine and environmental science cannot be overstated. As we continue to push the boundaries of knowledge, the test tube will undoubtedly remain a vital instrument in our quest for understanding the world around us. By appreciating the importance of the test tube, we can better recognize the value of scientific research in improving our lives and solving global challenges.

试管是实验室设备中不可或缺的一部分，几个世纪以来一直用于科学实验。它是一个小型的圆柱形容器，由玻璃或塑料制成，旨在盛放液体并促进各种化学反应。试管的发明彻底改变了化学和生物学领域，使科学家能够以精确和安全的方式进行实验。在这篇文章中，我将探讨试管在科学研究和教育中的重要性、其各种应用以及对现代科学的影响。首先，试管作为实验室的基本工具。它的设计使得混合和观察化学反应变得简单。例如，当科学家想要结合两种物质以观察其反应时，试管提供了一个受控的环境，让反应在没有外部干扰的情况下发生。这种隔离变量的能力在科学实验中至关重要，因为它帮助研究人员从观察中得出准确的结论。此外，试管在教育环境中也起着重要作用。科学课通常利用试管进行动手实验，让学生积极参与科学概念的学习。通过这些实践经验，学生了解化学性质、反应和科学方法。操作试管的触觉体验增强了理解，使抽象的理论变得更加具体和可关联。除了教育，试管在医学和环境科学等多个领域也有广泛应用。在医学实验室中，试管用于血液测试，样本被收集并分析以诊断疾病。在试管中进行测试的能力使医疗专业人员能够快速准确地识别健康问题，最终挽救生命。环境科学家也依赖试管来评估水质和土壤样本。通过分析这些样本中的污染物，研究人员可以监测污染水平并制定保护生态系统的策略。试管的多功能性使其成为应对我们今天面临的一些最紧迫环境挑战的宝贵工具。此外，围绕试管的创新导致了专门类型的开发，例如为特定实验或材料设计的试管。例如，一些试管由耐热硼硅酸盐玻璃制成，可以承受高温和突发的温度变化。这一特性在涉及加热物质的实验中尤其有用，因为它可以防止破裂并确保实验室的安全。总之，试管不仅仅是一件简单的玻璃器具；它是科学探究和发现的基石。它在促进实验、增强教育以及推动医学和环境科学进步中的作用不可低估。随着我们继续拓展知识的边界，试管无疑将在我们探索周围世界的过程中保持重要的工具地位。通过欣赏试管的重要性，我们可以更好地认识到科学研究在改善我们的生活和解决全球挑战中的价值。