test tube

简明释义

试管

英英释义

例句

1.She gently shook the test tube to mix the contents.

她轻轻摇晃试管以混合内容物。

2.After mixing the chemicals in the test tube, a reaction occurred.

在试管中混合化学物质后，发生了反应。

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

我们需要在每个试管上贴上样本名称标签。

4.The test tube was filled with a bright blue solution.

这个试管装满了明亮的蓝色溶液。

5.The scientist carefully poured the liquid into the test tube.

科学家小心翼翼地将液体倒入试管。

作文

The use of a test tube in scientific experiments is fundamental to the field of chemistry and biology. A test tube is a small cylindrical container made of glass or plastic, used primarily for holding, mixing, or heating substances in a laboratory setting. The design of a test tube allows for easy observation of chemical reactions and the ability to conduct experiments with precision. In this essay, I will discuss the importance of the test tube in scientific research, its various applications, and how it has revolutionized our understanding of science.First and foremost, the test tube serves as an essential tool for conducting experiments. Scientists utilize test tubes to mix different chemicals and observe the reactions that occur. For instance, when a scientist combines an acid with a base in a test tube, they can observe the neutralization reaction that produces salt and water. This hands-on approach allows researchers to gather data and draw conclusions about the properties and behaviors of various substances. Furthermore, the transparent nature of a test tube makes it easy to monitor changes in color, temperature, or gas production during a reaction, providing invaluable information for analysis.In addition to their role in chemical reactions, test tubes are also widely used in biological experiments. They are particularly important in microbiology, where scientists study microorganisms such as bacteria and yeast. By inoculating a test tube with a sample of bacteria, researchers can create a controlled environment to observe growth patterns and test the effects of different antibiotics. This method has been crucial in developing treatments for various infections, showcasing the practical applications of test tubes in healthcare.Moreover, test tubes are instrumental in educational settings. In high school and college laboratories, students use test tubes to conduct experiments as part of their science curriculum. This hands-on experience not only enhances their understanding of scientific concepts but also fosters critical thinking and problem-solving skills. Students learn how to handle equipment safely and accurately measure substances, which are essential skills for any aspiring scientist.The versatility of test tubes extends beyond simple experiments. They are also used in more advanced applications, such as in vitro fertilization (IVF). In this process, eggs and sperm are combined in a test tube to facilitate fertilization outside the human body. This groundbreaking technique has helped countless couples conceive when they otherwise might not have been able to. The use of test tubes in IVF exemplifies how this simple piece of laboratory equipment can have profound implications for human life and family planning.In conclusion, the test tube is an indispensable tool in both scientific research and education. Its ability to facilitate experiments, observe reactions, and support biological studies has made it a cornerstone of laboratory work. As we continue to advance our understanding of science, the test tube will undoubtedly remain a vital instrument in uncovering the mysteries of the natural world. Whether in a high school lab, a research facility, or a fertility clinic, the impact of the test tube is far-reaching and significant, making it a symbol of scientific progress and innovation.

在科学实验中，试管的使用是化学和生物学领域的基础。试管是一种小型圆柱形容器，通常由玻璃或塑料制成，主要用于在实验室中盛放、混合或加热物质。试管的设计使得科学家能够轻松观察化学反应，并精确地进行实验。在这篇文章中，我将讨论试管在科学研究中的重要性、它的各种应用以及它如何彻底改变我们对科学的理解。首先，试管是进行实验的重要工具。科学家利用试管混合不同的化学物质，并观察发生的反应。例如，当科学家将酸与碱混合在试管中时，他们可以观察到产生盐和水的中和反应。这种动手实践的方法使研究人员能够收集数据并得出关于各种物质特性的结论。此外，试管的透明特性使得监测反应过程中颜色、温度或气体产生的变化变得简单，为分析提供了宝贵的信息。除了在化学反应中的作用，试管还广泛应用于生物实验。它们在微生物学中尤为重要，科学家研究细菌和酵母等微生物。通过在试管中接种细菌样本，研究人员可以创建一个受控环境来观察生长模式并测试不同抗生素的效果。这种方法在开发各种感染的治疗方案中至关重要，展示了试管在医疗保健中的实际应用。此外，试管在教育环境中也发挥着重要作用。在高中和大学的实验室中，学生们使用试管作为科学课程的一部分进行实验。这种动手体验不仅增强了他们对科学概念的理解，还培养了批判性思维和解决问题的能力。学生们学习如何安全地处理设备和准确地测量物质，这些都是任何有志于成为科学家的必备技能。试管的多功能性不仅限于简单的实验。它们还在更高级的应用中发挥着重要作用，例如体外受精（IVF）。在这个过程中，卵子和精子在试管中结合，以促进体外受精。这一开创性的技术帮助了无数夫妇在原本无法受孕的情况下成功怀孕。试管在IVF中的应用展示了这种简单的实验室设备如何对人类生活和家庭规划产生深远的影响。总之，试管是科学研究和教育中不可或缺的工具。它促进实验、观察反应和支持生物研究的能力，使其成为实验室工作的基石。随着我们继续推进对科学的理解，试管无疑将继续作为揭示自然世界奥秘的重要工具。无论是在高中实验室、研究机构还是生育诊所，试管的影响都远及深远，成为科学进步和创新的象征。