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English

In 1790, Adair Crawford, a physician engaged in the preparation of barium, and his colleague William Cruickshank, recognised that the Strontian ores exhibited properties that differed from those in other "heavy spars" sources.

Chinese

1790年,制钡物理学家Adair Crawford和他的同事William Cruickshank发现,Strontian矿显示出与其他“重晶石”中常见的特性不同的特性。