vacuum envelope

简明释义

真空密封外壳

英英释义

例句

1.The laboratory used a vacuum envelope to ensure that the samples remained uncontaminated.

实验室使用了一个真空信封以确保样本不受污染。

2.The vacuum envelope technology is widely used in the packaging industry.

真空信封技术在包装行业得到广泛应用。

3.The food was sealed in a vacuum envelope to preserve its freshness.

食物被密封在一个真空信封中，以保持其新鲜度。

4.When shipping fragile items, it's best to use a vacuum envelope for added protection.

在运输易碎物品时，最好使用一个真空信封以增加保护。

5.He stored his winter clothes in a vacuum envelope to save space in the closet.

他把冬季衣物存放在一个真空信封中，以节省衣橱里的空间。

作文

In the field of packaging and preservation, the term vacuum envelope refers to a type of packaging that removes air from the surrounding environment to create a sealed barrier. This technique is widely used for food storage, electronics, and other sensitive items that require protection from moisture and oxidation. The concept behind a vacuum envelope is quite simple: by removing air, we reduce the chances of spoilage and extend the shelf life of products. The process of creating a vacuum envelope typically involves placing the item inside a plastic bag or container, which is then connected to a vacuum pump. The pump extracts the air, creating a low-pressure environment around the item. Once the desired level of vacuum is achieved, the bag or container is sealed tightly to maintain the vacuum state. This method is particularly beneficial for perishable goods such as meats, cheeses, and vegetables, which can quickly degrade when exposed to air. Moreover, the use of a vacuum envelope is not limited to food preservation. It is also employed in the shipping of delicate items, such as electronics, which are susceptible to damage from humidity and dust. By using a vacuum envelope, manufacturers can ensure that their products arrive at their destination in pristine condition. Additionally, this packaging method helps reduce waste, as it often requires less material than traditional packaging methods, making it an environmentally friendly option. Another advantage of a vacuum envelope is its ability to save space. When air is removed from the packaging, the items can be compressed, allowing for more efficient storage and transportation. This feature is especially useful for people who are looking to maximize space in their homes or during travel. For instance, many travelers use vacuum envelopes to pack clothing, as they can significantly reduce the volume of garments, making it easier to fit everything into a suitcase. In conclusion, the vacuum envelope is a versatile and effective packaging solution that offers numerous benefits. From prolonging the freshness of food to protecting fragile items, the applications of this technology are vast and varied. As consumers become increasingly aware of the importance of sustainability, the demand for vacuum envelopes is likely to grow, leading to further innovations in the field of packaging. Understanding the significance of a vacuum envelope not only enhances our knowledge of modern preservation techniques but also encourages us to adopt practices that contribute to a more sustainable future.

在包装和保存领域，术语真空信封指的是一种去除周围环境空气以创建密封屏障的包装类型。这种技术广泛用于食品储存、电子产品和其他需要防潮和防氧化保护的敏感物品。真空信封背后的概念相当简单：通过去除空气，我们降低了变质的几率，并延长了产品的保质期。创建真空信封的过程通常涉及将物品放置在塑料袋或容器中，然后将其连接到真空泵。泵抽走空气，在物品周围创造一个低压环境。一旦达到所需的真空水平，袋子或容器就会被紧紧封住，以维持真空状态。这种方法对于易腐烂的食品，如肉类、奶酪和蔬菜尤为有利，因为这些食品在暴露于空气中时会迅速恶化。此外，真空信封的使用并不仅限于食品保存。它还用于运输精密物品，如电子产品，这些物品容易受到湿气和灰尘的损害。通过使用真空信封，制造商可以确保他们的产品在抵达目的地时保持完好。此外，这种包装方法有助于减少浪费，因为它通常比传统包装方法需要更少的材料，使其成为一种环保的选择。真空信封的另一个优点是节省空间。当包装中的空气被去除时，物品可以被压缩，从而实现更高效的存储和运输。这个特点对那些希望最大化家庭或旅行空间的人尤其有用。例如，许多旅行者使用真空信封来打包衣物，因为它们可以显著减少服装的体积，使得更容易将所有物品放入行李箱中。总之，真空信封是一种多功能且有效的包装解决方案，提供了众多好处。从延长食品的新鲜度到保护易碎物品，这项技术的应用范围广泛且多样。随着消费者越来越意识到可持续性的重要性，对真空信封的需求可能会增长，从而推动包装领域的进一步创新。了解真空信封的重要性不仅增强了我们对现代保存技术的认识，还鼓励我们采用有助于可持续未来的实践。