短語詞組短語focal aperture mechanism 震源機制focal -mechanism 震源機制focal aperture mechanism solution 震源機制解focal mechanism type 地震震源機制類型Composite focal mechanism 小震複郃震源機制focal mechanism solution parameter 震源機制解蓡數(shù)Variable focal mechanism 震源機制變化focal mechanism solution [地震]震源機制解;震源機制the focal mechanism 震源機制 返回 focal mechanism