In fact, the core can be further divided into two spherical layers, the solid inner core of one thousand eighty kilometer in diameter and the liquid outercore of five thousand one hundred and sixty kilometers in thickness.
英
美
- 實(shí)際上地球的核還可進(jìn)一步劃分出兩個(gè)圈層，一個(gè)是固態(tài)的內核，直徑為1780公里。另一個(gè)圈層是液狀的外核，其厚度為5160公里。
