n.天然磁石

The ancient mariners used lodestones as primitive compasses to navigate the seas.
古代航海者利用磁石作为原始指南针在海上航行。
Lodestone has the unique property of being naturally magnetized, attracting iron objects towards it.
磁石具有天然磁化的特性，能吸引铁质物体靠近它。
The discovery of lodestone played a crucial role in the early development of magnetism and electromagnetism.
磁石的发现对早期磁学和电磁学的发展起到了关键作用。
Archaeologists found an old lodestone amulet believed to have been worn for protection and guidance.
考古学家发现了一件古老的磁石护身符，被认为是为了保护和指引而佩戴的。
In alchemy, lodestone was considered a powerful magical substance capable of healing and transmutation.
在炼金术中，磁石被视为一种强大的魔法物质，具有治疗和转化的能力。
A lodestone's polarity can be temporarily reversed by strong magnetic fields, but will usually revert to its natural state when removed.
强大的磁场可以暂时改变磁石的极性，但通常在移除磁场后会恢复其自然状态。
Geologists often come across lodestones while studying the mineral composition of certain igneous rocks.
地质学家在研究某些火成岩的矿物组成时，经常会遇到磁石。
The mysterious force emanating from the lodestone fascinated early scientists and philosophers alike.
磁石散发出的神秘力量令早期的科学家和哲学家都感到着迷。
By rubbing a piece of iron against a lodestone, one can create a temporary magnet.
通过将一块铁与磁石摩擦，可以制造出一个临时磁体。
The principle of magnetism demonstrated by lodestones laid the groundwork for many modern technologies including electric motors and generators.
磁石展示的磁性原理为包括电动机和发电机在内的许多现代技术奠定了基础。