accidental ejecta

简明释义

1. 外伐抛出物; 2. 偶然喷出物; 3. 外源喷出物; 4. 异源抛出物;

英英释义

例句

1.During the volcanic eruption, accidental ejecta 意外喷出物 was scattered over a wide area, affecting nearby communities.

在火山爆发期间，意外喷出物被散布到广泛的区域，影响了附近的社区。

2.The team is studying accidental ejecta 意外喷出物 to better understand the effects of asteroid impacts on Earth.

该团队正在研究意外喷出物以更好地理解小行星撞击地球的影响。

3.Scientists are analyzing the composition of accidental ejecta 意外喷出物 to determine its origin.

科学家们正在分析意外喷出物的成分以确定其来源。

4.Cleanup crews were dispatched to handle the accidental ejecta 意外喷出物 after the explosion at the factory.

爆炸后，清理小组被派遣处理工厂的意外喷出物。

5.The researchers found traces of accidental ejecta 意外喷出物 in the soil samples collected from the impact site.

研究人员在从撞击现场收集的土壤样本中发现了意外喷出物的痕迹。

作文

In the realm of planetary science and geology, the term accidental ejecta refers to materials that are expelled from a celestial body due to unexpected events, such as impacts or volcanic eruptions. These ejected materials can include rocks, dust, and gases, which may travel significant distances before settling back onto the surface or dispersing into space. Understanding accidental ejecta is crucial for scientists as it provides insights into the history and composition of planets and moons in our solar system.For instance, when an asteroid collides with a planet, it can create a crater and launch debris into the atmosphere. This debris, classified as accidental ejecta, can vary in size from tiny particles to large boulders. The study of these materials helps researchers determine the impact's force and the geological processes that may have occurred as a result. Furthermore, analyzing the composition of accidental ejecta can reveal information about the asteroid itself, including its mineral makeup and potential resources that could be utilized in future space exploration.Volcanic activity is another source of accidental ejecta. When a volcano erupts, it can release ash, pumice, and lava fragments into the atmosphere. These materials can spread over vast areas, affecting climate and air quality on Earth. Scientists monitor volcanic eruptions to study the characteristics of accidental ejecta and predict future eruptions. By understanding how these materials behave, they can better assess the risks associated with volcanic activity, which is crucial for protecting communities living near active volcanoes.Additionally, accidental ejecta plays a significant role in the formation of planetary rings and moons. For example, the rings of Saturn are composed of ice and rock particles that were likely formed from the remnants of moons that were shattered by collisions. The debris from these events, categorized as accidental ejecta, contributes to the dynamic nature of the rings and their ongoing evolution.In the context of Earth, accidental ejecta can also refer to man-made materials that are unintentionally released into the environment, such as debris from rocket launches or satellite collisions. As humanity ventures further into space, understanding the implications of accidental ejecta becomes increasingly important. It raises questions about space debris management and the potential risks posed to both orbital satellites and future space missions.In conclusion, the concept of accidental ejecta encompasses a wide range of phenomena across different scientific disciplines. Whether it is from natural events like asteroid impacts and volcanic eruptions or human activities in space, studying accidental ejecta allows scientists to gain valuable knowledge about the processes shaping our universe. As we continue to explore and understand our solar system, the significance of accidental ejecta will undoubtedly remain a key area of research, providing insights that could benefit both our understanding of planetary systems and our efforts to protect our own planet from similar occurrences.

在行星科学和地质学领域，术语意外喷发物指的是由于意外事件（如撞击或火山喷发）而从天体中排出的材料。这些喷发的材料可以包括岩石、灰尘和气体，它们可能在落回表面或散布到太空之前旅行很长的距离。理解意外喷发物对科学家至关重要，因为它提供了关于我们太阳系中行星和卫星的历史和组成的见解。例如，当小行星与行星碰撞时，它可以形成一个陨石坑并将碎片抛入大气中。这些被分类为意外喷发物的碎片，大小不一，从微小的颗粒到大型岩石都有。研究这些材料有助于研究人员确定撞击的力量以及由此可能发生的地质过程。此外，分析意外喷发物的组成可以揭示关于小行星本身的信息，包括其矿物成分和未来太空探索中可能利用的资源。火山活动是意外喷发物的另一个来源。当火山爆发时，它可以将灰烬、浮石和熔岩碎片释放到大气中。这些材料可以扩散到广阔的区域，影响地球上的气候和空气质量。科学家监测火山喷发，以研究意外喷发物的特征并预测未来的喷发。通过了解这些材料的行为，他们可以更好地评估与火山活动相关的风险，这对保护居住在活火山附近的社区至关重要。此外，意外喷发物在行星环和卫星的形成中也发挥着重要作用。例如，土星的环由冰和岩石颗粒组成，这些颗粒可能是由于碰撞而破碎的卫星的残余物。来自这些事件的碎片，被归类为意外喷发物，有助于环的动态特性及其持续演变。在地球的背景下，意外喷发物也可以指意外释放到环境中的人造材料，例如火箭发射或卫星碰撞产生的碎片。随着人类进一步进入太空，理解意外喷发物的影响变得越来越重要。这引发了关于太空垃圾管理及其对轨道卫星和未来太空任务可能构成的风险的问题。总之，意外喷发物的概念涵盖了不同科学学科中的广泛现象。无论是来自小行星撞击和火山喷发等自然事件，还是来自太空的人类活动，研究意外喷发物使科学家能够获得有关塑造我们宇宙过程的宝贵知识。随着我们继续探索和理解我们的太阳系，意外喷发物的重要性无疑将仍然是一个关键研究领域，提供的见解将有益于我们对行星系统的理解以及我们保护自己星球免受类似事件影响的努力。