The reserves of iron, barium, antimony, silver, fluorite, potash feldspar, white mica and other20 minerals are of a considerable scale.是什么意思_The reserves of iron, barium, antimony, silver, fluorite, potash feldspar, white mica and other20 minerals are of a considerable scale.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句