descriptive petrology是什么意思 descriptive petrology在线中文翻译

descriptive petrology是什么意思，descriptive petrology在线翻译，descriptive petrology中文意思，descriptive petrology的中文翻译，descriptive petrology发音，descriptive petrology例句，descriptive petrology词组短语，descriptive petrology怎么翻译，单词descriptive petrology的意思