subhedral

简明释义

英[ˌsʌbˈhiːdrəl]美[ˌsʌbˈhedrəl]

adj. [晶体] 半形的（没有完全被晶面包住的）

英英释义

单词用法

同义词

反义词

例句

1.Rutile exists as subhedral granular texture, and is mainly distributed between tremolite.

金红石呈半自形粒状结构，多分布于透闪石矿物之间。

2.Rutile exists as subhedral granular texture, and is mainly distributed between tremolite.

金红石呈半自形粒状结构，多分布于透闪石矿物之间。

3.The mineral sample displayed a range of crystal habits, with some grains appearing distinctly subhedral.

矿物样本展示了多种晶体习性，其中一些颗粒明显呈现亚晶形。

4.In our study of the rock formation, we noted that many of the feldspar crystals were subhedral in shape.

在我们对岩石形成的研究中，我们注意到许多长石晶体呈现亚晶形。

5.The subhedral quartz in the sample indicated a moderate degree of crystallization.

样本中的亚晶形石英表明中等程度的结晶。

6.Geologists often look for subhedral crystals as indicators of the conditions under which minerals formed.

地质学家通常寻找亚晶形晶体，以作为矿物形成条件的指示。

7.The presence of subhedral pyroxene in the basalt suggests a rapid cooling process.

玄武岩中存在的亚晶形辉石表明了快速冷却过程。

作文

In the study of mineralogy, the term subhedral is often used to describe crystals that are partially formed and exhibit some well-defined faces but lack the complete symmetry and perfection of fully developed crystals. This concept is crucial for understanding the growth conditions and environmental factors that influence crystal formation. When minerals crystallize from a molten state or through precipitation from a solution, they can encounter various obstacles that prevent them from achieving their ideal geometric shapes. These obstacles may include limited space, competition with other crystals, or variations in temperature and pressure. As a result, the crystals that form may be classified as subhedral, indicating that they have not reached their full potential in terms of symmetry and shape.The presence of subhedral crystals in a geological setting can provide valuable insights into the history of the rock formation. For instance, if a geologist encounters a sample containing subhedral quartz crystals, it may suggest that the quartz formed in a confined environment where growth was hindered. This could imply that the surrounding conditions were not optimal for crystal development, possibly due to rapid cooling or limited availability of mineral-rich fluids. By examining the characteristics of these subhedral crystals, scientists can infer the conditions under which they formed and how those conditions changed over time.Additionally, the study of subhedral crystals extends beyond geology into various fields such as materials science and chemistry. In materials science, the properties of subhedral crystals can differ significantly from those of their fully formed counterparts, affecting their strength, reactivity, and overall performance in applications. Understanding these differences is essential for engineers and researchers who aim to design materials with specific characteristics.Moreover, in the field of chemistry, the behavior of subhedral crystals during reactions can be quite distinct. Their incomplete surfaces may lead to increased reactivity, making them more susceptible to chemical interactions than perfectly formed crystals. This property can be advantageous in catalysis, where subhedral crystals may enhance reaction rates due to their higher surface area and active sites.In conclusion, the term subhedral plays a significant role in various scientific disciplines, particularly in mineralogy, geology, materials science, and chemistry. By understanding what subhedral means and recognizing its implications, researchers can gain deeper insights into the processes that shape our natural world and develop innovative materials for technological advancements. The study of subhedral crystals not only enriches our knowledge of mineral formation but also highlights the intricate relationships between structure, environment, and function in both nature and synthetic systems.

在矿物学研究中，术语subhedral常用于描述那些部分形成的晶体，这些晶体展现出一些明确的面，但缺乏完全对称和完美的特征。这个概念对于理解影响晶体形成的生长条件和环境因素至关重要。当矿物从熔融状态结晶或通过溶液沉淀时，它们可能会遇到各种障碍，这些障碍阻止它们达到理想的几何形状。这些障碍可能包括空间有限、与其他晶体的竞争，或温度和压力的变化。因此，形成的晶体可能被归类为subhedral，这表明它们在对称性和形状方面未能达到其全部潜力。在地质环境中存在subhedral晶体可以提供有关岩石形成历史的宝贵见解。例如，如果地质学家遇到含有subhedral石英晶体的样本，这可能表明石英是在一个受限的环境中形成的，在那里生长受到阻碍。这可能意味着周围条件不适合晶体发展，可能是由于快速冷却或矿物丰富的流体供应有限。通过检查这些subhedral晶体的特征，科学家可以推断它们形成的条件以及这些条件如何随着时间的推移而变化。此外，subhedral晶体的研究超越了地质学，延伸到材料科学和化学等多个领域。在材料科学中，subhedral晶体的性质可能与其完全形成的对应物显著不同，影响其强度、反应性和在应用中的整体性能。理解这些差异对于工程师和研究人员来说至关重要，他们旨在设计具有特定特性的材料。而且，在化学领域，subhedral晶体在反应过程中的行为可能截然不同。其不完整的表面可能导致其反应性增加，使其比完美形成的晶体更容易发生化学相互作用。这一特性在催化中可能是有利的，因为subhedral晶体可能由于其更高的表面积和活性位点而增强反应速率。总之，术语subhedral在矿物学、地质学、材料科学和化学等多个科学学科中发挥着重要作用。通过理解subhedral的含义并认识其影响，研究人员可以深入了解塑造我们自然世界的过程，并开发出用于技术进步的创新材料。对subhedral晶体的研究不仅丰富了我们对矿物形成的知识，还突显了自然和合成系统中结构、环境和功能之间复杂的关系。