Read Edit View history 海底扩张 hǎidǐkuòzhāng seafloor spreading Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 海底扩张/海底擴張 · hǎidǐkuòzhāng · seafloor spreading 2026/03/04 海底扩张 / 海底擴張 hǎidǐkuòzhāng seafloor spreading seafloor spreading (geology) 海底扩张学说是板块构造论的基础之一。 created sense Mar 4, 2026, 02:25 AM