dewar vessel

简明释义

杜瓦瓶

英英释义

例句

1.During the experiment, the dewar vessel maintained the temperature required for superconductivity.

在实验过程中，德瓦瓶维持了超导所需的温度。

2.A dewar vessel is essential for storing cryogenic liquids safely.

德瓦瓶对于安全存储低温液体是必不可少的。

3.The lab technician carefully transferred the liquid nitrogen into the dewar vessel.

实验室技术员小心地将液氮转移到德瓦瓶中。

4.We need to refill the dewar vessel with helium for the upcoming experiment.

我们需要为即将到来的实验给德瓦瓶加满氦气。

5.Please ensure that the dewar vessel is properly sealed before transporting it.

请确保在运输之前德瓦瓶已经正确密封。

作文

In the world of science and technology, the importance of proper storage and handling of materials cannot be overstated. One crucial piece of equipment that plays a significant role in this regard is the dewar vessel. A dewar vessel (德瓦瓶) is a specialized container designed to hold and maintain cryogenic liquids at extremely low temperatures. These vessels are named after Sir James Dewar, a Scottish chemist and physicist who invented them in the late 19th century. The design of a dewar vessel is quite unique; it typically consists of two walls with a vacuum between them, which minimizes heat transfer and allows the contents to remain cold for extended periods.The applications of dewar vessels are numerous and varied. In laboratories, they are commonly used to store liquid nitrogen, helium, and other cryogenic substances necessary for various experiments and processes. For instance, in the field of biology, dewar vessels are essential for preserving biological samples and cells at low temperatures, thereby preventing degradation and ensuring their viability for future research. Similarly, in the field of physics, researchers utilize dewar vessels to cool superconducting materials, which require extremely low temperatures to exhibit their unique properties.Moreover, the use of dewar vessels extends beyond research laboratories. In the medical field, they are employed to store and transport cryopreserved tissues and organs, which are critical for transplantation procedures. The ability to maintain a stable low temperature is vital to prevent cellular damage during transport. Additionally, industries that rely on liquefied gases, such as the aerospace and automotive sectors, also utilize dewar vessels to handle these substances safely and efficiently.One of the remarkable features of dewar vessels is their ability to minimize evaporation losses of cryogenic liquids. This is particularly important because even small losses can result in significant cost implications for industries that rely on these materials. By using a dewar vessel, companies can ensure that they are maximizing the efficiency of their operations while minimizing waste.Despite their many advantages, working with dewar vessels also requires caution. The extremely low temperatures involved pose risks such as frostbite or cold burns if not handled properly. Therefore, it is crucial for users to be trained in the safe handling of these vessels. Furthermore, appropriate personal protective equipment must always be worn when working with cryogenic materials to ensure safety.In conclusion, the dewar vessel (德瓦瓶) is an indispensable tool in various scientific and industrial fields, providing a reliable means of storing and transporting cryogenic liquids. Its unique design allows for effective temperature maintenance, making it an essential component in many applications ranging from research to medical procedures. As technology continues to advance, the role of dewar vessels will likely expand even further, underscoring their significance in our modern world.

在科学和技术的世界中，妥善储存和处理材料的重要性不容小觑。一个在这方面发挥重要作用的关键设备是德瓦瓶。德瓦瓶（dewar vessel）是一种专门设计的容器，用于在极低温度下储存和保持低温液体。这些容器以苏格兰化学家和物理学家詹姆斯·德瓦（Sir James Dewar）的名字命名，他在19世纪末发明了它们。德瓦瓶的设计非常独特；它通常由两层壁组成，中间有真空，这可以最小化热传递，使内容物在较长时间内保持冷却。德瓦瓶的应用众多且多样。在实验室中，它们通常用于储存液氮、氦气和其他用于各种实验和过程的低温物质。例如，在生物学领域，德瓦瓶对于以低温保存生物样本和细胞至关重要，从而防止降解并确保它们在未来研究中的可行性。同样，在物理学领域，研究人员利用德瓦瓶来冷却超导材料，这些材料需要极低的温度才能展现其独特的特性。此外，德瓦瓶的使用超越了研究实验室。在医学领域，它们被用来储存和运输冷冻保存的组织和器官，这对于移植程序至关重要。维持稳定的低温能力对于防止运输过程中的细胞损伤至关重要。此外，依赖液化气体的行业，如航空航天和汽车行业，也利用德瓦瓶安全高效地处理这些物质。德瓦瓶的一个显著特点是它们能够最小化低温液体的蒸发损失。这一点尤其重要，因为即使是小的损失也可能导致依赖这些材料的行业出现重大成本影响。通过使用德瓦瓶，公司可以确保最大限度地提高运营效率，同时减少浪费。尽管有许多优点，但使用德瓦瓶也需要小心。涉及的极低温度带来了如冻伤或冷烧等风险，因此，用户必须接受有关安全操作这些容器的培训。此外，在处理低温材料时，始终必须佩戴适当的个人防护装备，以确保安全。总之，德瓦瓶（dewar vessel）是各个科学和工业领域不可或缺的工具，提供了一种可靠的方法来储存和运输低温液体。其独特的设计使得有效的温度维护成为可能，使其在从研究到医疗程序的许多应用中成为必不可少的组成部分。随着技术的不断进步，德瓦瓶的作用可能会进一步扩大，突显其在现代世界中的重要性。