ballistic ejecta

简明释义

弹道喷射物;

英英释义

例句

1.During the experiment, we measured the distance that ballistic ejecta traveled after the explosion.

在实验中，我们测量了爆炸后弹道喷射物飞行的距离。

2.The crater's formation was largely due to ballistic ejecta being expelled at high velocities.

这个陨石坑的形成主要是由于高速度喷出的弹道喷射物。

3.Scientists study ballistic ejecta to understand the dynamics of explosive volcanic eruptions.

科学家研究弹道喷射物以了解爆炸性火山喷发的动态。

4.The geological survey revealed layers of ballistic ejecta from ancient asteroid impacts.

地质调查揭示了来自古代小行星撞击的弹道喷射物层。

5.The impact of the meteor created a significant amount of ballistic ejecta, which scattered debris across the landscape.

这颗陨石的撞击产生了大量的弹道喷射物，将碎片散布在整个地形上。

作文

The study of planetary geology often involves understanding various phenomena that occur due to impacts from celestial bodies. One such phenomenon is the formation of ballistic ejecta, which refers to the material that is expelled during an impact event, such as a meteorite striking the surface of a planet or moon. This ejected material can include fragments of rock, dust, and other materials that are thrown into the air as a result of the force of the impact. Understanding ballistic ejecta is crucial for scientists who seek to reconstruct the history of planetary surfaces and assess the potential hazards posed by future impacts.When a meteorite collides with a planetary surface, it generates an enormous amount of energy. This energy not only creates a crater but also causes the surrounding material to be blasted away from the impact site. The ballistic ejecta can travel significant distances, depending on the size of the impact and the velocity at which the material is expelled. For instance, studies have shown that larger impacts can send ejecta hundreds of kilometers away from the original site, creating a blanket of debris that can alter the landscape dramatically.The characteristics of ballistic ejecta are also of great interest to researchers. By analyzing the composition and distribution of these materials, scientists can gain insights into the geological history of a celestial body. For example, the presence of certain minerals within the ejecta can indicate the composition of the impacted surface, revealing information about the planet's crust and mantle. Moreover, the study of ballistic ejecta can help in understanding the processes that shape planetary surfaces over time, including erosion and sedimentation.In addition to its scientific significance, the concept of ballistic ejecta has practical implications for space exploration. As humanity ventures further into space, understanding the risks associated with impacts becomes increasingly important. Spacecraft and habitats may be at risk from ballistic ejecta generated by meteoroid impacts. Therefore, developing protective measures and designing resilient structures will be essential for ensuring the safety of astronauts and equipment.Furthermore, the study of ballistic ejecta is not limited to our own planet or moon; it extends to other celestial bodies as well. For example, missions to Mars and asteroids have provided valuable data regarding the nature of ejecta on those surfaces. The findings from these explorations contribute to our broader understanding of impact events across the solar system and help identify potential resources that could be utilized in future missions.In conclusion, ballistic ejecta plays a vital role in both planetary geology and the practical considerations of space exploration. By studying the materials expelled during impact events, scientists can unlock secrets about the history and composition of celestial bodies while also preparing for the challenges that come with human activities in space. As we continue to explore the universe, the importance of understanding ballistic ejecta will only grow, paving the way for future discoveries and advancements in planetary science.

行星地质学的研究通常涉及理解由于天体撞击而发生的各种现象。其中一个现象就是形成ballistic ejecta，它指的是在撞击事件中被抛出的物质，例如流星体撞击行星或月球表面时。这些被抛出的材料可以包括岩石碎片、灰尘和其他在撞击力作用下被抛入空气中的材料。理解ballistic ejecta对科学家重建行星表面的历史和评估未来撞击可能带来的危害至关重要。当流星体与行星表面发生碰撞时，会产生巨大的能量。这种能量不仅会形成一个坑，还会导致周围的材料从撞击点被炸飞。ballistic ejecta可以根据撞击的大小和材料被抛出的速度而在相当远的距离内传播。例如，研究表明，较大的撞击可以将抛射物送出数百公里远，形成一层覆盖物，显著改变景观。ballistic ejecta的特征对于研究人员来说也是非常有趣的。通过分析这些材料的成分和分布，科学家可以获得关于天体地质历史的见解。例如，抛射物中某些矿物的存在可以指示受影响表面的组成，从而揭示行星地壳和地幔的信息。此外，研究ballistic ejecta可以帮助我们理解随着时间推移塑造行星表面的过程，包括侵蚀和沉积。除了其科学意义之外，ballistic ejecta的概念对太空探索也具有实际意义。随着人类进一步进入太空，了解撞击相关的风险变得越来越重要。航天器和栖息地可能会受到流星撞击所产生的ballistic ejecta的威胁。因此，开发保护措施和设计坚固的结构对于确保宇航员和设备的安全至关重要。此外，ballistic ejecta的研究并不仅限于我们自己的星球或月球；它还扩展到其他天体。例如，对火星和小行星的任务提供了有关这些表面上抛射物性质的宝贵数据。这些探索的发现有助于我们更广泛地理解太阳系中的撞击事件，并帮助识别未来任务中可能利用的资源。总之，ballistic ejecta在行星地质学和太空探索的实际考虑中扮演着至关重要的角色。通过研究撞击事件中被抛出的材料，科学家可以解锁有关天体历史和组成的秘密，同时为应对太空活动带来的挑战做好准备。随着我们继续探索宇宙，理解ballistic ejecta的重要性只会增加，为未来的发现和行星科学的进步铺平道路。