cutting through literally miles of limestone. 凿穿了差不多数英里的石灰岩

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cutting limestone literally through miles of
  1. It was Lechuguilla's gypsum crystals
    龙舌兰洞的石膏结晶群
  2. that made scientists question how these caverns were formed.
    使科学家们产生了 这个巨洞如何形成的疑问
  3. They discovered that Lechuguilla's limestone had actually been eaten away by sulphuric acid,
    他们发现龙舌兰洞的石灰岩 实际上是被硫酸侵蚀的
  4. cutting through literally miles of limestone.
    凿穿了差不多数英里的石灰岩
  5. And when sulphuric acid dissolves limestone
    硫酸在溶解石灰岩的同时
  6. it leaves behind gypsum,
    也留下了石膏
  7. the basis of Lechuguilla's remarkable formations.
    它们最终形成了龙舌兰洞的奇景

来自《行星地球 第一季 第四集 Planet Earth S01E04 洞穴》第 335 行

Walden21
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