在1972年,稀土工业超过了历史的记录。稀土工业已经全面发展。稀土的消耗量是1971年开始增加的,1972年继续增加。1972年,全世界稀土的装运量比1971年增加了10%,如果用美元来算,则1972年比1971年增加了25%。在1972年,混合稀土金属经常供应不足。1972年,生产和出售了很多品种的稀土硅 In 1972, the rare earth industry exceeded the historical record. Rare earth industry has been fully developed. Rare earth consumption began to increase in 1971 and continued to increase in 1972. In 1972, worldwide shipments of rare earths increased by 10% over 1971, representing a 25% increase in 1972 over 1971 in dollars. In 1972, mixed rare earth metals were often under-supplied. In 1972, many varieties of rare earth silicon were produced and sold