uncombined

简明释义

英[ˌʌnkəmˈbaɪnd]美[ˌʌnkəmˈbaɪnd]

adj. [化学] 未化合的；自由的

英英释义

单词用法

同义词

反义词

例句

1.Some metals are found in their native status, that is, uncombined with other elements.

有些金属是以天然状态存在的，即不与其他元素化合。

2.It probably does not occur uncombined in nature But is found in natural alloys with other noble (i. e., chemically inactive or inert) metals.

自然界中可能不存在纯铱，通常和其它贵金属共生于天然合金中(化学活性不活跃或迟钝)。

3.In laboratory-scale research, Cooper and co-workers found that dry water absorbed over three times as much carbon dioxide as ordinary, uncombined water and silica in the same space of time.

在实验室研究中，库珀及其同事发现干水吸收的二氧化碳数量是同等时间内普通未结合水-硅的3倍以上。

4.In laboratory-scale research, Cooper and co-workersfound that dry water absorbed over three times as much carbon dioxide asordinary, uncombined water and silica in the same space of time.

在实验室研究中，库珀及其同事发现干水吸收的二氧化碳数量是同等时间内普通未结合水-硅的3倍以上。

5.Iridium probably does not occur uncombined in nature but it is found in natural alloys with other noble metals.

自然界中可能不存在纯铱，通常和其它贵金属共生于天然合金中。

6.It is widely distributed, usually in small amounts, occasionally uncombined but more often as selenides of iron, lead, silver, or copper.

通常以小量广泛分布，偶尔出现游离状态，但往往是以铁、铅、银或铜的硒化物出现。

7.In laboratory-scale research, Cooper and co-workers found that dry water absorbed over three times as much carbon dioxide as ordinary, uncombined water and silica in the same space of time.

在实验室研究中，库珀及其同事发现干水吸收的二氧化碳数量是同等时间内普通未结合水-硅的3倍以上。

8.Objective:To study the effects on the alkaloid components in Strychnos nux-vomical L. uncombined and combined with Glycyrrhiza uralensis Fisch.

目的：研究马钱子配伍甘草对马钱子中主要生物碱的影响。

9.Feed it as well with unburned and uncombined foods because that which is simple and natural is best.

同样，去摄取没有烧过和非合成的食物，因为简单和自然是最好的。

10.Native element: Any of the 19 chemical elements that occur AS minerals and are found in nature uncombined with other elements.

自然元素：以自然状态存在于矿物中，不与其它元素结合的十九种化学元素。

11.In programming, variables can be kept uncombined 未结合的 until needed for specific functions.

在编程中，变量可以保持未结合的状态，直到需要用于特定功能。

12.The data was kept uncombined 未结合的 to allow for individual analysis of each dataset.

数据保持未结合的状态，以便对每个数据集进行单独分析。

13.Some vitamins are best absorbed when taken in their uncombined 未结合的 form.

某些维生素在以未结合的形式摄入时更易被吸收。

14.The artist preferred to work with colors uncombined 未结合的, allowing for unique blends on the canvas.

这位艺术家喜欢使用未结合的颜色进行创作，从而在画布上产生独特的混合效果。

15.In chemistry, elements can exist in an uncombined 未结合的 state before they react with one another.

在化学中，元素可以以未结合的状态存在，直到它们相互反应。

作文

In the world of chemistry, the term uncombined refers to elements or substances that exist in their pure form, not mixed with any other elements or compounds. Understanding this concept is crucial for students and professionals alike, as it lays the foundation for more complex chemical reactions and interactions. When we think about uncombined elements, we often visualize the periodic table, where each element stands alone, possessing unique properties that define its behavior and reactivity.For instance, consider the element oxygen, which can exist as an uncombined gas (O2) in the atmosphere. This form of oxygen is vital for life on Earth, as it supports respiration in animals and combustion in fires. However, when oxygen combines with hydrogen to form water (H2O), it takes on new properties and functions. This transformation from uncombined to combined states illustrates how the nature of substances changes depending on their interactions with other elements.The significance of uncombined elements extends beyond chemistry into various fields, including biology and environmental science. For example, when studying ecosystems, scientists often analyze uncombined nutrients in soil that are essential for plant growth. These nutrients, such as nitrogen and phosphorus, must be available in their uncombined forms for plants to absorb them effectively. If these nutrients were only present in combined forms, their availability would be limited, impacting the entire food chain.Moreover, the concept of uncombined substances plays a role in industrial processes. Many manufacturing sectors rely on uncombined raw materials to create products. For example, metals like iron and copper are often used in construction and electronics in their uncombined states before they undergo various treatments to enhance their properties. Understanding the characteristics of these uncombined materials is essential for engineers and designers to ensure safety and efficiency in their applications.In conclusion, the term uncombined is foundational in understanding the behavior of elements and compounds in chemistry and beyond. It highlights the importance of purity in various contexts, from ecological systems to industrial applications. By grasping the concept of uncombined elements, individuals can appreciate the complexity of chemical interactions and their implications in real-world scenarios. As we continue to explore the intricacies of science, recognizing the significance of uncombined substances will undoubtedly enhance our understanding and appreciation of the natural world around us.

在化学世界中，术语uncombined指的是以其纯形式存在的元素或物质，而没有与任何其他元素或化合物混合。理解这一概念对学生和专业人士来说至关重要，因为它为更复杂的化学反应和相互作用奠定了基础。当我们想到uncombined元素时，我们常常会想象周期表，其中每个元素独立存在，拥有定义其行为和反应性的独特属性。例如，考虑元素氧，它可以作为uncombined气体（O2）存在于大气中。这种形式的氧对地球上的生命至关重要，因为它支持动物的呼吸和火焰的燃烧。然而，当氧与氢结合形成水（H2O）时，它会呈现出新的属性和功能。这种从uncombined状态到结合状态的转变说明了物质的性质如何根据与其他元素的相互作用而变化。uncombined元素的重要性不仅限于化学，还扩展到生物学和环境科学等多个领域。例如，在研究生态系统时，科学家们经常分析土壤中对植物生长至关重要的uncombined营养物质。这些营养物质，如氮和磷，必须以其uncombined形式存在，植物才能有效吸收。如果这些营养物质仅以结合形式存在，其可用性将受到限制，从而影响整个食物链。此外，uncombined物质的概念在工业过程中也发挥着作用。许多制造行业依赖于uncombined原材料来生产产品。例如，铁和铜等金属通常在建筑和电子产品中以其uncombined状态使用，然后经过各种处理以增强其性能。理解这些uncombined材料的特性对于工程师和设计师确保其应用的安全性和效率至关重要。总之，术语uncombined是理解化学中元素和化合物行为的基础。它突出了在各种背景下纯度的重要性，从生态系统到工业应用。通过掌握uncombined元素的概念，个人可以欣赏化学相互作用的复杂性及其在现实世界中的影响。随着我们继续探索科学的复杂性，认识到uncombined物质的重要性无疑会增强我们对周围自然世界的理解和欣赏。