test tube

简明释义

试管

英英释义

例句

1.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。

2.In biology class, we used a test tube to observe the reaction of different substances.

在生物课上，我们使用试管观察不同物质的反应。

3.After the experiment, we discarded the used test tubes properly.

实验结束后，我们妥善处理了用过的试管。

4.The test tube was filled with a solution that changed color when heated.

这个试管里装着一种加热时会变色的溶液。

5.She mixed the blue liquid with the red liquid in a test tube.

她在试管中将蓝色液体与红色液体混合。

作文

The world of science is filled with fascinating tools and instruments that help researchers explore the mysteries of life and the universe. One such instrument that has become synonymous with scientific experimentation is the test tube. A test tube is a small cylindrical container made of glass or plastic, primarily used in laboratories for holding, mixing, or heating substances. It is an essential piece of equipment in chemistry, biology, and various other scientific fields. In the realm of chemistry, the test tube plays a crucial role in conducting experiments. Scientists often use it to mix different chemicals and observe reactions. For instance, when two reactive substances are combined in a test tube, they may undergo a chemical reaction that produces gas, heat, or even a color change. These observations are vital for understanding chemical properties and reactions, paving the way for discoveries that can lead to new materials or medicines.Moreover, in the field of biology, test tubes are indispensable for experiments involving cells and microorganisms. Researchers use them to culture bacteria or perform biochemical assays. For example, a biologist might place a sample of bacteria in a test tube along with a nutrient solution to encourage growth. By observing the changes in the test tube, scientists can gather critical data about the behavior and characteristics of the organisms they are studying.The versatility of the test tube extends beyond mere observation. It is also a tool for education. In schools, students conduct experiments using test tubes to learn fundamental scientific principles. These hands-on activities help foster a deeper understanding of concepts such as chemical reactions, pH levels, and the properties of matter. By using a test tube, students can visualize the processes they are learning about, making science more engaging and accessible.In addition to its practical uses, the test tube has a symbolic significance in popular culture. It represents the essence of scientific inquiry and experimentation. When people think of a scientist, they often envision someone in a lab coat working with test tubes and beakers, surrounded by bubbling liquids and colorful reactions. This imagery highlights the importance of experimentation in advancing knowledge and technology.However, the use of test tubes and other laboratory equipment also raises ethical considerations. As scientists push the boundaries of research, they must remain mindful of the implications of their work. For example, experiments involving genetic modification or drug development can have significant consequences for society. Therefore, while the test tube is a powerful tool for discovery, it also carries the responsibility of ethical research practices.In conclusion, the test tube is much more than just a piece of glassware; it is a symbol of scientific exploration and innovation. Its applications span across various disciplines, from chemistry to biology, and it serves as a vital educational tool. As we continue to unlock the secrets of the natural world, the test tube will undoubtedly remain a cornerstone of scientific research and discovery. The journey of understanding through the lens of a test tube illustrates humanity's relentless pursuit of knowledge and the endless possibilities that lie ahead.

科学的世界充满了迷人的工具和仪器，帮助研究人员探索生命和宇宙的奥秘。其中一种与科学实验同义的仪器就是试管。试管是一个小型的圆柱形容器，通常由玻璃或塑料制成，主要用于实验室中盛放、混合或加热物质。它是化学、生物学以及其他各种科学领域的重要设备。在化学领域，试管在进行实验时发挥着至关重要的作用。科学家们常常用它来混合不同的化学物质并观察反应。例如，当两种反应性物质在试管中结合时，可能会发生化学反应，产生气体、热量，甚至颜色变化。这些观察对理解化学性质和反应至关重要，为新材料或药物的发现铺平了道路。此外，在生物学领域，试管对于涉及细胞和微生物的实验来说不可或缺。研究人员使用它们来培养细菌或进行生化测定。例如，一位生物学家可能会将一份细菌样本放入试管中，并加入营养溶液以促进生长。通过观察试管中的变化，科学家可以收集关于他们研究的生物体行为和特征的重要数据。试管的多功能性不仅限于观察，它也是教育的工具。在学校，学生们使用试管进行实验，以学习基本的科学原理。这些实践活动有助于加深对化学反应、pH水平和物质性质等概念的理解。通过使用试管，学生可以可视化他们所学习的过程，使科学变得更加生动和易于理解。除了实际用途，试管在流行文化中也具有象征意义。它代表了科学探究和实验的本质。当人们想到科学家时，他们常常想象某个穿着实验服的人，手里拿着试管和烧杯，周围是冒着泡泡的液体和五彩缤纷的反应。这种意象突显了实验在推动知识和技术进步中的重要性。然而，使用试管和其他实验室设备也引发了伦理考虑。随着科学家不断突破研究的界限，他们必须时刻关注自己工作的影响。例如，涉及基因修改或药物开发的实验可能对社会产生重大后果。因此，虽然试管是发现的强大工具，但它也承载着伦理研究实践的责任。总之，试管不仅仅是一件玻璃器皿；它是科学探索和创新的象征。它的应用跨越多个学科，从化学到生物学，并且作为重要的教育工具。随着我们继续揭开自然世界的秘密，试管无疑将继续成为科学研究和发现的基石。通过试管的视角理解的探索之旅，体现了人类对知识的不懈追求以及未来无限的可能性。