稀土元素在现代科技产业中扮演着不可或缺的角色。1这17种金属元素广泛应用于消费电子和工业产品中，其中手机振动马达采用稀土磁铁，屏幕依赖铈基抛光粉进行加工，光缆中使用铒作为放大材料，汽车方向盘同样配备稀土磁铁，排气系统则采用铈化合物作为催化剂。1稀土元素的名称由科学家在1794年创造。1
尽管稀土元素在地壳中的丰度与铜相当，1但其分离和提纯难度极大。1掌握稀土矿物加工技术的国家拥有重要的政治影响力。1美国曾在该领域丧失优势，中国趁机扩大了在稀土供应链中的主导地位。
Rare earth elements—a group of seventeen metals—have become indispensable to modern technology, yet the countries that control their processing hold disproportionate geopolitical influence.1 These elements serve critical functions across consumer electronics and automotive applications: rare earth magnets power smartphone vibration motors and vehicle steering systems, cerium oxide polishes smartphone screens, erbium amplifies signals in fiber optic cables, and cerium compounds treat automobile exhaust emissions.1
The strategic importance of rare earth processing stems from the extreme difficulty of separating these elements from mined ore.1 Although cerium occurs in the Earth's crust at concentrations comparable to copper, and the scientific nomenclature for rare earth elements dates to 1794, the technical challenge of mineral extraction has long favored nations with established processing infrastructure.1 The United States once maintained a competitive edge in this sector, but as that advantage eroded, China capitalized on the opportunity to establish dominant control over the global rare earth supply chain.1
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