liquid nitrogen

简明释义

液态氮

英英释义

例句

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

科学家使用液氮快速冷冻样本。

2.The chef used liquid nitrogen to create instant ice cream in front of guests.

厨师在客人面前使用液氮制作即食冰淇淋。

3.When handling liquid nitrogen, always wear protective gloves and goggles.

处理液氮时，务必佩戴防护手套和护目镜。

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

在低温技术中，液氮对保存生物标本至关重要。

5.A common use of liquid nitrogen is in the preservation of organs for transplant.

一个常见的液氮用途是器官移植的保存。

作文

Liquid nitrogen is a fascinating substance that has captured the interest of scientists and engineers alike. It is nitrogen in a liquid state at an extremely low temperature, typically around -196 degrees Celsius (-321 degrees Fahrenheit). This remarkable property makes liquid nitrogen (液氮) an essential tool in various fields, including medicine, food preservation, and cryogenics.One of the most common applications of liquid nitrogen (液氮) is in the medical field, particularly in cryotherapy. Cryotherapy involves the use of extreme cold to destroy abnormal tissues, such as warts or precancerous cells. By applying liquid nitrogen (液氮) directly to the affected area, doctors can freeze the tissue, leading to its eventual death and removal. This method is not only effective but also minimally invasive, allowing for quicker recovery times for patients.In addition to its medical uses, liquid nitrogen (液氮) plays a crucial role in the food industry. It is used for flash freezing food items, which helps preserve their texture and flavor. When food is rapidly frozen with liquid nitrogen (液氮), ice crystals formed are much smaller than those created during traditional freezing methods. This results in a higher quality product that retains its original taste and nutritional value. Restaurants often use liquid nitrogen (液氮) to create unique dining experiences, such as making ice cream in seconds or creating dramatic presentations with fog effects.Cryogenics, the study of materials at very low temperatures, is another area where liquid nitrogen (液氮) is indispensable. Researchers use liquid nitrogen (液氮) to cool superconductors and other materials to study their properties. The ability to achieve such low temperatures allows scientists to explore new phenomena and develop advanced technologies, such as magnetic levitation and improved electronic components.Despite its many advantages, working with liquid nitrogen (液氮) requires caution. Due to its extremely low temperature, direct contact with skin can result in severe frostbite or cold burns. Safety protocols must be followed when handling liquid nitrogen (液氮), including wearing protective gloves and goggles. Additionally, it should always be used in well-ventilated areas to prevent the risk of asphyxiation, as liquid nitrogen (液氮) vaporizes quickly and can displace oxygen in the air.In conclusion, liquid nitrogen (液氮) is a versatile and valuable substance that has numerous applications across different fields. Its ability to reach extremely low temperatures opens up a world of possibilities for innovation and discovery. From medical treatments to culinary delights and scientific research, the uses of liquid nitrogen (液氮) continue to expand, showcasing its importance in our modern world. As we advance in technology and understanding, the potential for liquid nitrogen (液氮) to contribute to new breakthroughs remains limitless.

液氮是一种引人入胜的物质，吸引了科学家和工程师的兴趣。它是在极低温度下的液态氮，通常在-196摄氏度（-321华氏度）左右。这一显著特性使得液氮（liquid nitrogen）成为医学、食品保存和低温技术等各个领域的重要工具。液氮（liquid nitrogen）在医学领域的一个常见应用是冷冻疗法。冷冻疗法涉及使用极端的寒冷来摧毁异常组织，如疣或癌前细胞。通过将液氮（liquid nitrogen）直接应用于受影响区域，医生可以冷冻组织，导致其最终死亡和去除。这种方法不仅有效，而且创伤小，使患者恢复时间更快。除了医学用途，液氮（liquid nitrogen）在食品行业中也发挥着至关重要的作用。它用于快速冷冻食品，这有助于保持其质地和风味。当食物用液氮（liquid nitrogen）迅速冷冻时，形成的冰晶比传统冷冻方法产生的要小得多。这导致产品质量更高，保留其原始口味和营养价值。餐馆经常使用液氮（liquid nitrogen）创造独特的用餐体验，例如在几秒钟内制作冰淇淋或通过雾效创造戏剧性的呈现。低温技术，即研究极低温材料的学科，是另一个液氮（liquid nitrogen）不可或缺的领域。研究人员使用液氮（liquid nitrogen）来冷却超导体和其他材料，以研究其特性。能够达到如此低的温度使科学家能够探索新的现象并开发先进技术，例如磁悬浮和改进的电子元件。尽管有许多优点，但处理液氮（liquid nitrogen）需要谨慎。由于其极低的温度，直接接触皮肤可能导致严重的冻伤或冷烧。在处理液氮（liquid nitrogen）时必须遵循安全协议，包括佩戴防护手套和护目镜。此外，使用时应始终在通风良好的区域进行，以防窒息风险，因为液氮（liquid nitrogen）迅速蒸发并可能取代空气中的氧气。总之，液氮（liquid nitrogen）是一种多功能且有价值的物质，在不同领域有着众多应用。它达到极低温度的能力为创新和发现开辟了一个新世界。从医学治疗到烹饪美食，再到科学研究，液氮（liquid nitrogen）的用途不断扩大，展示了它在现代世界中的重要性。随着我们在技术和理解上的进步，液氮（liquid nitrogen）在推动新突破方面的潜力仍然是无限的。