test tube

简明释义

试管

英英释义

例句

1.The experiment required several test tubes for different samples.

实验需要多个试管用于不同的样本。

2.After mixing the solution in the test tube, we observed a color change.

在试管中混合溶液后，我们观察到了颜色变化。

3.The scientist carefully placed the chemical into the test tube.

科学家小心翼翼地将化学物质放入试管。

4.She used a test tube to measure the exact amount of liquid needed.

她使用试管来测量所需液体的确切量。

5.He labeled each test tube to keep track of the experiments.

他给每个试管贴上标签，以便跟踪实验。

作文

A test tube is a common laboratory glassware used in scientific experiments. It is typically made of glass and has a cylindrical shape with a rounded bottom. The primary purpose of a test tube (试管) is to hold, mix, or heat small quantities of liquids or solids during chemical reactions. In this essay, I will explore the significance of the test tube (试管) in various scientific fields, its applications, and its impact on modern science.One of the most critical areas where test tubes (试管) are utilized is in chemistry. Chemists use test tubes (试管) to conduct experiments safely and efficiently. For instance, when combining different chemicals, a test tube (试管) allows for easy observation of reactions without the risk of spilling or contamination. The transparent nature of the glass enables scientists to monitor color changes, gas production, and other visual indicators of chemical reactions.In biology, test tubes (试管) play a vital role in conducting experiments related to microorganisms and cellular processes. Microbiologists often use test tubes (试管) to culture bacteria and other microorganisms. By providing a controlled environment, these glass containers allow researchers to study growth patterns, antibiotic resistance, and other important biological phenomena. Additionally, test tubes (试管) are essential in genetic research, where they are used to mix DNA samples and perform polymerase chain reactions (PCR).The medical field also heavily relies on test tubes (试管) for diagnostic purposes. In laboratories, blood samples are collected in test tubes (试管) for various tests. Each test tube (试管) is designed for specific types of tests, such as serum separation or clotting studies. This standardization ensures accurate results and helps healthcare professionals diagnose diseases effectively. Moreover, advancements in technology have led to the development of specialized test tubes (试管) that can store samples for extended periods without compromising their integrity.In addition to their practical uses, test tubes (试管) have become symbols of scientific inquiry and discovery. They represent the curiosity and innovation that drive scientific progress. Many educational institutions use test tubes (试管) in their science labs to teach students about fundamental concepts in chemistry and biology. Hands-on experiments using test tubes (试管) help students develop critical thinking skills and foster a deeper understanding of scientific principles.Furthermore, the design of the test tube (试管) has evolved over time. Modern test tubes (试管) are often made from borosilicate glass, which can withstand high temperatures and thermal shock. Some are even made from plastic, offering durability and safety in various laboratory settings. The introduction of features like graduated markings on test tubes (试管) has enhanced their functionality, allowing for precise measurements of liquids.In conclusion, the test tube (试管) is an indispensable tool in the world of science. Its versatility and practicality make it a fundamental component in laboratories across various disciplines. From chemistry to biology and medicine, test tubes (试管) facilitate experimentation, analysis, and discovery. As we continue to explore the mysteries of the natural world, the humble test tube (试管) will remain a symbol of scientific advancement and a crucial instrument in our quest for knowledge.

试管是科学实验中常用的实验室玻璃器皿。它通常由玻璃制成，具有圆柱形状和圆底。试管的主要目的是在化学反应过程中盛放、混合或加热小量的液体或固体。在这篇文章中，我将探讨试管在各个科学领域的重要性、应用以及对现代科学的影响。试管最关键的应用领域之一是化学。化学家使用试管安全高效地进行实验。例如，在结合不同化学物质时，试管可以让观察反应变得简单，而不必担心溢出或污染。玻璃的透明特性使科学家能够监测颜色变化、气体产生及其他化学反应的视觉指标。在生物学中，试管在与微生物和细胞过程相关的实验中发挥着重要作用。微生物学家通常使用试管培养细菌和其他微生物。通过提供一个受控环境，这些玻璃容器使研究人员能够研究生长模式、抗生素耐药性和其他重要的生物现象。此外，试管在基因研究中也至关重要，研究人员用它们混合DNA样本并进行聚合酶链反应（PCR）。医疗领域也在诊断中大量依赖试管。在实验室中，血液样本被收集在试管中进行各种测试。每个试管都是为特定类型的测试设计的，例如血清分离或凝血研究。这种标准化确保了结果的准确性，并帮助医疗专业人员有效地诊断疾病。此外，科技的进步导致了专门试管的开发，这些试管可以在不损害样本完整性的情况下长期存储样本。除了实用用途外，试管还成为科学探究和发现的象征。它们代表了推动科学进步的好奇心和创新精神。许多教育机构在科学实验室中使用试管来教学生关于化学和生物学的基本概念。使用试管进行的动手实验帮助学生培养批判性思维能力，并加深对科学原理的理解。此外，试管的设计随着时间的推移而不断演变。现代试管通常由耐高温和热冲击的硼硅酸盐玻璃制成。有些甚至由塑料制成，在各种实验室环境中提供耐用性和安全性。试管上引入的刻度标记增强了其功能性，使液体的精确测量成为可能。总之，试管是科学世界中不可或缺的工具。它的多功能性和实用性使其成为各个学科实验室中的基本组成部分。从化学到生物学和医学，试管促进了实验、分析和发现。随着我们继续探索自然界的奥秘，朴素的试管将始终是科学进步的象征，也是我们追求知识的关键工具。