• 饱含会结晶碳酸盐微粒海底沈积经过四百万年一点一点慢慢形成这些大圆

    Crystallization of calcium and carbonates around charged particles in muddy undersea sediments gradually formed the boulders in a process taking as long as four million years.

    altontp.spaces.live.com

  • 饱含会结晶碳酸盐微粒海底沈积经过四百万年一点一点慢慢形成这些大圆

    Crystallization of calcium and carbonates around charged particles in muddy undersea sediments gradually formed the boulders in a process taking as long as four million years.

    altontp.spaces.live.com

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