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来源:雅诚德英语网
By the 1960s, the mine was booming, largely through sales of europium, used to produce the bright red tones of colour televisions.
到60年代,主要是通过销售用于生产彩电的铕,稀土开采蓬勃发展。
By the 1960s, the mine was booming, largely through sales of europium, used to produce the bright red tones of colour televisions.
到60年代,主要是通过销售用于生产彩电的铕,稀土开采蓬勃发展。