短语词组短语sea -floor spreading hypothesis 海底扩张说pulse of sea -floor spreading 海底扩张的脉动TIDAL MODEL OF SEA -FLOOR SPREADING 海底扩张的潮汐模式Plate Tectonics and Sea -floor Spreading 板块结构与海床扩展;板块构造和海底扩张;板块构造学;板块结 返回 sea-floor spreading