desiccator

简明释义

英[ˈdesɪkeɪtə(r)]美[ˈdesəˌkeɪtər]

n. 干燥器；干燥剂；干燥工

英英释义

单词用法

同义词

反义词

例句

1.Air enters the desiccator through an annular inlet channel, which is covered by a strip of Polytetrafluorethylene PTFE coated wire mesh to prevent the ingress of rain, dust, insects, etc.

空气进入干燥器之后需通过环形通道，环形通道采用聚四氟乙烯涂层，防止雨水、灰尘和昆虫等进入。

2.Large vacuum desiccator was used to collect ammonia volatilized from above ground parts of soybean during its growth period.

利用大型真空干燥器，测定了大豆在不同生长发育阶段地上部分氨的挥发损失。

3.The desiccator tells you: Photographic apparatus should Be kept dry.

干燥剂告诉你：摄影器材，严防受潮。

4.Where drying in vacuum over a desiccant is directed in the individual monograph, a vacuum desiccator or a vacuum drying pistol, or other suitable vacuum drying apparatus, is to be used.

要是按着单独文献报道中做真空干燥失重，应该使用这些文献中要求采用的真空干燥器、真空干燥枪或者其他的真空干燥设备。

5.Where drying in a desiccator is specified, exercise particular care to ensure that the desiccant is kept fully effective by frequent replacement.

当用到干燥器时，应该特别注意及时更换干燥剂以保持其有效状态。

6."in a desiccator": the drying is carried out over diphosphorus pentoxide R at atmospheric pressure and at room temperature;

“干燥器中”：采用五氧化二磷试剂干燥，大气压，室温。

7.We used a desiccator to keep the salt crystals dry during the experiment.

我们使用干燥器在实验过程中保持盐晶体干燥。

8.The laboratory technician opened the desiccator to retrieve the dried samples.

实验室技术员打开干燥器取出干燥的样品。

9.To ensure accurate measurements, always dry your glassware in a desiccator before using it.

为了确保准确的测量，使用前请务必在干燥器中干燥玻璃器皿。

10.After the experiment, we placed the samples in a desiccator to prevent moisture absorption.

实验结束后，我们将样品放入干燥器中，以防止吸湿。

11.The desiccator is essential for storing hygroscopic chemicals safely.

为了安全存储吸湿性化学品，干燥器是必不可少的。

作文

In the world of science and laboratory practices, precision and accuracy are paramount. One essential tool that scientists rely on is the desiccator, which plays a critical role in the preservation and storage of moisture-sensitive materials. A desiccator (干燥器) is a sealed container that is used to maintain a low-humidity environment, effectively removing moisture from its contents. This is particularly important in chemical experiments, where the presence of water can lead to unwanted reactions or degradation of sensitive compounds.The construction of a typical desiccator involves durable materials such as glass or plastic, with a tight-sealing lid that prevents moisture from entering. Inside the desiccator, one often finds a desiccant, which is a substance that absorbs moisture. Common desiccants include silica gel, calcium chloride, and activated alumina. These materials are crucial for maintaining the dry conditions necessary for the preservation of hygroscopic substances, which tend to absorb moisture from the air.Using a desiccator is straightforward but requires careful handling to ensure its effectiveness. When placing samples inside the desiccator, it is important to ensure that they are clean and dry. After sealing the lid, the desiccator should be monitored regularly to check the condition of the desiccant. If the desiccant becomes saturated, it must be replaced or regenerated to restore the desiccator's drying capability.The applications of a desiccator extend beyond just chemical laboratories. In food science, for example, a desiccator can be used to store dehydrated foods, preventing them from absorbing moisture and spoiling. Similarly, in the field of electronics, moisture-sensitive components can be safely stored in a desiccator to avoid corrosion and damage.Moreover, the importance of a desiccator cannot be overstated in various industries. Pharmaceutical companies utilize desiccators to store drugs and active ingredients that may lose potency or efficacy when exposed to moisture. In research settings, scientists use desiccators to preserve samples that require a controlled atmosphere, ensuring that experimental results remain valid and reproducible.In conclusion, the desiccator (干燥器) is an invaluable tool in both scientific and industrial applications. Its ability to create and maintain a moisture-free environment is essential for the integrity of many materials and products. Understanding how to properly use and maintain a desiccator is crucial for anyone involved in fields where moisture control is necessary. As we continue to advance in science and technology, the role of the desiccator will undoubtedly remain significant, helping to safeguard the quality and longevity of various substances and materials across multiple disciplines.

在科学和实验室实践的世界中，精确和准确至关重要。科学家们依赖的一个基本工具是干燥器，它在保护和储存对湿度敏感的材料方面发挥着关键作用。干燥器（desiccator）是一个密封容器，用于维持低湿度环境，有效地去除其内容物中的水分。这在化学实验中尤其重要，因为水的存在可能导致不必要的反应或敏感化合物的降解。典型干燥器的构造采用耐用的材料，如玻璃或塑料，配有紧密密封的盖子，以防止水分进入。在干燥器内部，通常可以找到一种干燥剂，它是一种吸收水分的物质。常见的干燥剂包括硅胶、氯化钙和活性铝土矿。这些材料对于维持保存吸湿性物质所需的干燥条件至关重要，这些物质倾向于从空气中吸收水分。使用干燥器非常简单，但需要小心处理以确保其有效性。当将样品放入干燥器时，重要的是确保它们是干净和干燥的。密封盖子后，应定期监测干燥器以检查干燥剂的状态。如果干燥剂饱和，则必须更换或再生，以恢复干燥器的干燥能力。干燥器的应用不仅限于化学实验室。例如，在食品科学中，干燥器可用于储存脱水食品，防止其吸收水分而变质。同样，在电子领域，受潮敏感的组件可以安全地存放在干燥器中，以避免腐蚀和损坏。此外，干燥器的重要性在各个行业中不可低估。制药公司利用干燥器来储存可能在接触水分时失去效力或效果的药物和活性成分。在研究环境中，科学家使用干燥器来保存需要受控气氛的样品，确保实验结果保持有效且可重复。总之，干燥器（desiccator）是科学和工业应用中不可或缺的工具。它创造和维持无水环境的能力对于许多材料和产品的完整性至关重要。了解如何正确使用和维护干燥器对于任何涉及湿度控制必要性的领域的人来说都是至关重要的。随着科学和技术的不断进步，干燥器的角色无疑将保持重要性，帮助保护各个学科中各种物质和材料的质量和持久性。