The Bayan Bold gold deposit, which is related to granite-porphyry formed in Early Paleozoic island arc environment, is of a mesothermal type.是什么意思_The Bayan Bold gold deposit, which is related to granite-porphyry formed in Early Paleozoic island arc environment, is of a mesothermal type.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句