lithoclast

简明释义

英[ˈlɪθəʊklæst]美[ˈlɪθəˌklæst]

碎石器

岩屑

英英释义

单词用法

同义词

反义词

例句

1.Objective to evaluate the clinical efficacy of percutaneous nephrolithotomy using third generation Swiss LithoClast Master under ultrasound guidance in treating upper urinary tract calculi.

目的探讨经皮肾镜下应用第三代弹道超声波碎石清石系统治疗复杂性肾结石的临床效果和操作体会。

2.Methods Choledochfiberscope(CHF) combined with air pressure ballistic lithoclast(APBL) under ureterscopy were used on 28 cases of large or impacted residual gallstones.

方法以输尿管硬镜气压弹道碎石联用纤维胆道镜治疗28例巨大、嵌顿性胆道残石。

3.Objective to evaluate the clinical efficacy of percutaneous nephrolithotomy using third generation Swiss LithoClast Master under ultrasound guidance in treating upper urinary tract calculi.

目的探讨经皮肾镜下应用第三代弹道超声波碎石清石系统治疗复杂性肾结石的临床效果和操作体会。

4.Objective To evaluate the value of swiss lithoclast under ureteroscop in the treatment of 83 cases of middle and lower ureteral stones.

目的评价输尿管镜下气压弹道碎石治疗输尿管中下段结石的临床疗效。

5.Methods Between December 1998 and December 2001,186 patient with stone in the ureter were treated with Swiss lithoclast pneumatic lithotriptor in the ureteroscope management.

方法采用输尿管镜下气压弹道碎石术治疗输尿管结石186例。

6.In petrology, identifying the types of lithoclasts 岩石碎片 is essential for understanding the rock's formation process.

在岩石学中，识别lithoclasts 岩石碎片的类型对于理解岩石的形成过程至关重要。

7.During the geological survey, the team discovered a large lithoclast 岩石碎片 that provided insights into the area's volcanic history.

在地质调查中，团队发现了一个大型的lithoclast 岩石碎片，这为该地区的火山历史提供了见解。

8.The analysis revealed that the lithoclasts 岩石碎片 were primarily derived from granite sources.

分析显示，这些lithoclasts 岩石碎片主要来自花岗岩源。

9.Researchers used a microscope to examine the mineral composition of the lithoclasts 岩石碎片 found in the sediment.

研究人员使用显微镜检查沉积物中发现的lithoclasts 岩石碎片的矿物成分。

10.The sedimentary rock was composed of various lithoclasts 岩石碎片, indicating a complex depositional environment.

这块沉积岩由各种lithoclasts 岩石碎片组成，表明了复杂的沉积环境。

作文

In the study of geology, the term lithoclast refers to a fragment of rock that has been broken off from a larger mass. This concept is crucial in understanding the processes of erosion and sedimentation that shape our planet's landscape. When rocks are subjected to weathering, they can be disintegrated into smaller pieces, which are then transported by natural forces such as wind, water, or ice. These smaller rock fragments, or lithoclasts, play a significant role in the formation of sedimentary rocks and contribute to the dynamic nature of Earth's surface.The process of erosion begins when environmental factors like temperature changes, moisture, and biological activity weaken the bonds within a rock. As these bonds break, the rock starts to fracture, producing lithoclasts of various sizes, from tiny grains of sand to large boulders. Once formed, these fragments can be carried away by rivers, glaciers, or even the ocean. Over time, they accumulate in different environments, where they may undergo further changes.For instance, riverbeds often collect numerous lithoclasts that have been smoothed and rounded by the constant flow of water. In contrast, deserts may feature sharp-edged lithoclasts that have been shaped by wind erosion. The characteristics of these fragments not only tell us about the geological history of an area but also provide insights into the conditions under which they were formed.When discussing sedimentary rocks, lithoclasts are particularly important. These rocks are primarily composed of particles that have been cemented together over time. The size, shape, and composition of lithoclasts within a sedimentary rock can reveal much about the environment of deposition. For example, a rock made up of well-rounded lithoclasts typically indicates a long transportation history, suggesting that these fragments have traveled great distances before settling in their current location.Moreover, the study of lithoclasts extends beyond just their physical properties. Geologists often analyze the mineral content of these fragments to understand the source rocks from which they originated. This analysis can help reconstruct past geological events, such as volcanic eruptions or mountain-building processes, providing a clearer picture of Earth's history.In conclusion, the concept of lithoclast is fundamental to the field of geology. By studying these rock fragments, scientists can gain valuable insights into the processes that shape our planet. Whether examining the effects of erosion, sedimentation, or the formation of sedimentary rocks, lithoclasts serve as essential indicators of geological activity. Understanding their significance not only enhances our knowledge of Earth’s processes but also underscores the intricate relationships between different geological phenomena. As we continue to explore and learn about our planet, the role of lithoclasts will undoubtedly remain a key topic of interest in the ongoing study of geology.

在地质学的研究中，术语lithoclast指的是从较大岩石块中断裂下来的岩石碎片。这个概念对于理解塑造我们星球景观的侵蚀和沉积过程至关重要。当岩石受到风化作用时，它们可以分解成更小的碎片，这些碎片随后被风、水或冰等自然力量运输。这些较小的岩石碎片，或称lithoclasts，在沉积岩的形成中发挥着重要作用，并且对地球表面的动态性质有所贡献。侵蚀过程始于环境因素（如温度变化、湿度和生物活动）削弱岩石内部的结合力。当这些结合力破裂时，岩石开始断裂，产生各种大小的lithoclasts，从细小的沙粒到大型卵石不等。一旦形成，这些碎片就会被河流、冰川甚至海洋带走。随着时间的推移，它们在不同环境中累积，可能经历进一步的变化。例如，河床通常会收集大量的lithoclasts，这些碎片在水流的不断冲刷下变得光滑和圆润。相反，沙漠可能会出现锋利的lithoclasts，这些碎片是由风侵蚀形成的。这些碎片的特征不仅告诉我们一个地区的地质历史，还提供了关于它们形成条件的见解。在讨论沉积岩时，lithoclasts特别重要。这些岩石主要由经过时间粘结在一起的颗粒组成。沉积岩中lithoclasts的大小、形状和成分可以揭示沉积环境。例如，由圆润的lithoclasts组成的岩石通常表明其运输历史较长，暗示这些碎片在定居到当前位置之前已经旅行了很远的距离。此外，lithoclasts的研究超越了它们的物理特性。地质学家经常分析这些碎片的矿物成分，以了解它们来源岩石的特征。这种分析有助于重建过去的地质事件，例如火山爆发或造山过程，从而提供更清晰的地球历史图景。总之，lithoclast的概念是地质学领域的基础。通过研究这些岩石碎片，科学家可以获得关于塑造我们星球的过程的宝贵见解。无论是考察侵蚀、沉积还是沉积岩的形成，lithoclasts都是地质活动的重要指示器。理解它们的重要性不仅增强了我们对地球过程的知识，而且强调了不同地质现象之间复杂的相互关系。随着我们继续探索和学习我们的星球，lithoclasts的角色无疑将继续成为地质学研究的一个关键主题。