supercritical

简明释义

英[suːpəˈkrɪtɪk(ə)l;sjuː-]美[ˌsuːpərˈkrɪtɪkəl]

adj. [物][物化] 超临界的；吹毛求疵的

英英释义

单词用法

同义词

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例句

1.But a strong police presence in a supercritical hot spot doesn't provide a lasting solution.

但是，在超临界的热点中，一个强力警方的出现并不能提供一个长久的解决办法。

2.The parameters in supercritical CO2 extraction and separation were studied.

研究超临界CO_2萃取和分离富集过程的试验参数。

3.This paper summarizes the theoretical calculations of mineral solubilities in supercritical aqueous solution.

本文概述了矿物在超临界溶液中的溶解度理论计算。

4.The higher the supercritical temperature, the stronger the association interaction.

超临界条件下，随温度增加，缔合作用增强；

5.The extraction methods are water extraction, organic solvent extraction and supercritical fluid extraction.

水蒸气蒸馏法、有机溶剂萃取法和超临界流体萃取法。

6.Summarized supercritical fluid property, supercritical fluid application and supercritical fluid extraction technique.

综述了超临界流体特性、超临界流体的应用及超临界萃取技术。

7.When water reaches its supercritical 超临界 point, it no longer behaves as a typical liquid or gas.

当水达到其超临界点时，它不再像典型的液体或气体那样行为。

8.Researchers are exploring supercritical 超临界 water oxidation as a way to treat hazardous waste.

研究人员正在探索超临界水氧化作为处理有害废物的一种方法。

9.The properties of supercritical 超临界 fluids make them ideal for chemical reactions that require high temperatures and pressures.

由于超临界流体的特性，它们非常适合需要高温和高压的化学反应。

10.The supercritical 超临界 CO2 extraction method is widely used in the food industry to extract flavors and essential oils.

在食品工业中，超临界二氧化碳提取方法被广泛用于提取香料和精油。

11.In a supercritical state, the fluid can diffuse through solids like a gas and dissolve materials like a liquid.

在超临界状态下，流体可以像气体一样扩散通过固体，并像液体一样溶解材料。

作文

In recent years, the concept of supercritical fluids has gained significant attention in various scientific and industrial fields. A supercritical fluid is a state of matter that occurs when a substance is subjected to temperatures and pressures above its critical point. In this state, the fluid exhibits unique properties that are distinct from those of its liquid and gas phases. This phenomenon has wide-ranging applications, particularly in the fields of chemistry, materials science, and environmental engineering.One of the most notable characteristics of supercritical fluids is their ability to dissolve a variety of substances, making them ideal for extraction processes. For instance, supercritical carbon dioxide (CO2) is commonly used as a solvent in the extraction of essential oils and natural compounds from plants. This method is not only efficient but also environmentally friendly, as it avoids the use of harmful organic solvents. The supercritical state allows CO2 to penetrate plant materials easily, extracting valuable compounds without altering their chemical structures.Moreover, the use of supercritical fluids extends to the field of pharmaceuticals. In drug formulation, supercritical technology can enhance the solubility and bioavailability of poorly soluble drugs. By utilizing supercritical solvents, pharmaceutical scientists can create nanoparticles that improve the delivery and effectiveness of medications. This innovative approach has the potential to revolutionize drug development, leading to more effective treatments with fewer side effects.Another important application of supercritical fluids is in the field of material synthesis. Researchers have discovered that supercritical fluids can be used to produce advanced materials with tailored properties. For example, supercritical water can facilitate the synthesis of nanomaterials, which have applications in electronics, energy storage, and catalysis. The ability to control the temperature and pressure of supercritical fluids during synthesis allows for precise manipulation of material properties, resulting in high-performance products.Furthermore, supercritical fluids play a crucial role in environmental remediation. They can be employed to extract pollutants from contaminated soils and water. The supercritical state enhances the mobility of contaminants, making it easier to remove them from the environment. This technique is particularly useful in cleaning up sites affected by industrial activities or oil spills, contributing to the restoration of ecosystems.Despite the numerous advantages of supercritical fluids, there are challenges that researchers must address. The equipment required to maintain the necessary temperatures and pressures can be expensive and complex. Additionally, there is a need for further research to fully understand the behavior of supercritical fluids and optimize their applications across different industries.In conclusion, the study of supercritical fluids holds great promise for various sectors, including pharmaceuticals, materials science, and environmental engineering. Their unique properties enable innovative solutions to complex problems, paving the way for advancements in technology and sustainability. As research continues, we can expect to see even more applications of supercritical fluids that will positively impact our world. Understanding the significance of supercritical fluids is essential for scientists and engineers who aim to harness their potential for future innovations.

近年来，超临界流体的概念在各个科学和工业领域引起了广泛的关注。超临界流体是指当物质在超过其临界点的温度和压力下所处的一种物态。在这种状态下，流体表现出与其液态和气态阶段截然不同的独特性质。这一现象具有广泛的应用，特别是在化学、材料科学和环境工程等领域。超临界流体最显著的特征之一是其溶解多种物质的能力，使其成为提取过程的理想选择。例如，超临界二氧化碳（CO2）通常用作从植物中提取精油和天然化合物的溶剂。这种方法不仅高效，而且环保，因为它避免了使用有害的有机溶剂。超临界状态使得二氧化碳能够轻松渗透植物材料，从而提取有价值的化合物，而不改变其化学结构。此外，超临界流体的使用还延伸到制药领域。在药物配方中，超临界技术可以提高难溶性药物的溶解度和生物利用度。通过利用超临界溶剂，药物科学家可以制造纳米颗粒，从而改善药物的递送和有效性。这种创新方法有潜力彻底改变药物开发，导致治疗效果更佳且副作用更少。超临界流体的另一个重要应用是在材料合成领域。研究人员发现，超临界流体可用于生产具有特定性能的先进材料。例如，超临界水可以促进纳米材料的合成，这些材料在电子、能源储存和催化等方面具有应用。通过在合成过程中控制超临界流体的温度和压力，可以精确操控材料的性质，从而得到高性能的产品。此外，超临界流体在环境修复中也发挥着重要作用。它们可以被用来从受污染的土壤和水中提取污染物。超临界状态增强了污染物的流动性，使其更容易从环境中去除。这一技术在清理受到工业活动或油污影响的地点时尤其有用，有助于生态系统的恢复。尽管超临界流体具有众多优点，但研究人员仍需解决一些挑战。维持必要温度和压力所需的设备可能昂贵且复杂。此外，需要进一步研究以充分理解超临界流体的行为，并优化其在不同工业中的应用。总之，超临界流体的研究对制药、材料科学和环境工程等多个领域具有巨大的前景。它们独特的性质为复杂问题提供了创新解决方案，为技术和可持续发展铺平了道路。随着研究的不断深入，我们可以期待看到更多超临界流体的应用，这将对我们的世界产生积极影响。理解超临界流体的重要性对于那些希望利用其潜力进行未来创新的科学家和工程师至关重要。