ACabbr.(=alternating current)交流电abbr.(=actinium )元素锕abbr.(=air-conditioning )空气调节Acarin开乐散

1. A possible mechanism for the generation of deep focus earthquakes is faulting caused by olivine undergoing a phase transition into a spinel structure.
   发生深层震源地震的机制可能是由于橄榄石经历了到针状结构的相变而产生的断层作用。