The MA type is further divided into two subtypes of basaltic magma crystallization (BMA) and ultramafic magma crystallization (UMA).是什么意思_The MA type is further divided into two subtypes of basaltic magma crystallization (BMA) and ultramafic magma crystallization (UMA).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句