n.无球粒陨石

Achondrites are stony meteorites that originate from planetary bodies, not from asteroids.
铁陨石是来自行星体的石质陨石，而不是来自小行星。

The composition of achondrites suggests they come from differentiated planetary bodies like the Earth or Mars.
铁陨石的成分表明它们来自地球或火星等分化的行星体。

Achondrites provide valuable insights into the geology and history of planets in our solar system.
铁陨石为我们提供了关于太阳系中行星地质学和历史的重要见解。

Unlike chondritic meteorites, achondrites do not contain chondrules, which are small, round grains found in some meteorites.
与球粒陨石不同，铁陨石不含有球粒，这是在某些陨石中发现的小而圆的颗粒。

Achondrites can help scientists understand the processes that occur within planetary bodies over time.
铁陨石可以帮助科学家了解随时间发生的行星体内过程。

The study of achondrites has led to the discovery of new minerals not found on Earth.
对铁陨石的研究导致发现了地球上未发现的新矿物。

Achondrites are often referred to as "stony meteorites without chondrules," due to their unique composition.
铁陨石通常被称为“无球粒的石质陨石”，因为它们具有独特的组成。

The presence of achondrites on Earth is evidence of past collisions between planetary bodies in our solar system.
地球上铁陨石的存在证明了太阳系中行星体之间过去发生过碰撞。

By analyzing achondrites, researchers can learn about the formation and evolution of planets in our solar system.
通过分析铁陨石，研究人员可以了解太阳系中行星的形成和演化。

Achondrites have been instrumental in advancing our understanding of the early history of the Earth and other terrestrial planets.
铁陨石对于推进我们对地球早期历史和其他类地行星的理解至关重要。