基本解释下落断层英汉例句双语例句The fault planes have a listric feature, slip-ped down along the soft layer of the Taiyuan Formation.断面上陡下缓，向下顺上石炭统太原组软弱层滑脱。词组短语短语down strike -slip fault 走滑正断层down -slip fault 下落断层