短語詞組短語volcanic hydrothermal activity 熱液作用volcanic c activity 火山活動Mesozoic volcanic magmatic activity 中生代火山volcanic ash activity 火山灰活性secondary volcanic activity 火山后期活動volcanic -intrusive activity 火山侵入活動classification of volcanic activity 活動性分類Free From Volcanic Activity 不受火山活動mesozoic volcanic activity 中生代火山巖 返回 volcanic activity