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来源:雅诚德英语网
Cobalt ores found in China have a high manganese content, which produces a more muted blue-gray color.
中国发现的钴矿含锰量高,因此呈现出较弱的蓝灰色。
Cobalt ores found in China have a high manganese content, which produces a more muted blue-gray color.
中国发现的钴矿含锰量高,因此呈现出较弱的蓝灰色。