liquid nitrogen

简明释义

液态氮

英英释义

例句

1.In cryogenics, liquid nitrogen is essential for preserving biological specimens.

在低温技术中，液氮对于保存生物标本至关重要。

2.The chef employed liquid nitrogen to make instant ice cream.

厨师使用液氮制作速成冰淇淋。

3.Safety goggles are necessary when handling liquid nitrogen.

处理液氮时需要佩戴安全护目镜。

4.The scientist used liquid nitrogen to freeze the samples quickly.

科学家使用液氮快速冷冻样本。

5.You can create a fog effect in your performance by using liquid nitrogen.

通过使用液氮，你可以在表演中创造雾效。

作文

Liquid nitrogen is a fascinating substance that has captured the attention of scientists, engineers, and even culinary artists. It is nitrogen in a liquid state at an extremely low temperature of -196 degrees Celsius (-321 degrees Fahrenheit). This unique property makes liquid nitrogen 液氮 incredibly useful in various applications, ranging from industrial processes to innovative cooking techniques.One of the most common uses of liquid nitrogen 液氮 is in the field of cryogenics. Cryogenics is the study of materials at very low temperatures. In this field, liquid nitrogen 液氮 is used to preserve biological samples, such as cells, tissues, and even organs, for research and medical purposes. By cooling these samples with liquid nitrogen 液氮, scientists can halt biological activity and prevent degradation, allowing for long-term storage and analysis.Moreover, liquid nitrogen 液氮 plays a crucial role in the manufacturing industry. It is often used for cooling and tempering metals, which helps improve their strength and durability. The rapid cooling effect of liquid nitrogen 液氮 can alter the microstructure of metals, resulting in enhanced mechanical properties. This technique is widely applied in the production of high-performance components for aerospace and automotive industries.In recent years, the culinary world has also embraced liquid nitrogen 液氮 as a tool for creating innovative dishes. Chefs use liquid nitrogen 液氮 to instantly freeze ingredients, allowing for unique textures and presentations. For example, ice cream made with liquid nitrogen 液氮 can be prepared in seconds, resulting in a smoother product without the large ice crystals typically found in traditional ice cream. Additionally, liquid nitrogen 液氮 can create dramatic visual effects, such as fog or smoke, when it evaporates, adding an element of excitement to dining experiences.However, working with liquid nitrogen 液氮 requires caution. Due to its extremely low temperature, it can cause severe frostbite if it comes into contact with skin. Therefore, proper safety protocols must be followed, including wearing protective gloves and goggles. It is essential to handle liquid nitrogen 液氮 in well-ventilated areas to prevent the buildup of nitrogen gas, which can displace oxygen and pose a suffocation hazard.In conclusion, liquid nitrogen 液氮 is a remarkable substance with diverse applications across various fields. Its ability to reach extremely low temperatures makes it invaluable in cryogenics, manufacturing, and even gastronomy. As we continue to explore the potential of liquid nitrogen 液氮, it is crucial to prioritize safety and responsible usage to harness its benefits effectively.