送交者: meiyou 于 2009-12-10, 15:50:59:

• 地壳里的钙都已组成稳定的碳酸、硫酸、硅酸盐，你想生成的碳酸钙中的钙从哪里来？ (无内容) - cktears (0 bytes) 2009-12-10, 22:18:27 (395341)
  • that seems to be a problem (无内容) - meiyou (0 bytes) 2009-12-11, 07:27:59 (395361)
• i'm thinking of photosynthetic bacteria - kma (63 bytes) 2009-12-10, 15:58:02 (395218)
  • i think BIO method is the only practical way to attack CO2 (无内容) - meiyou (0 bytes) 2009-12-10, 17:04:57 (395232)
    • It seems a smart idea, - 病友 (50 bytes) 2009-12-10, 17:09:59 (395234)

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