Dr Scott argues that underwater mining will be far less disruptive to the environment than terrestrial mining: there will be no piles of waste rock, since the deposits are directly on the sea floor.
斯科特辩解说水下开采将比陆地开采带来的环境破坏少得多：由于是直接在海底作业，因此将不会有大量的岩石废料。
Dr Morris explained that the mineral probably came from carbonate-rich water, which interacted with the rock.
莫里斯博士解释说，富含碳酸盐的水和石头发生反应，从而产生了碳酸盐。
Dr Morris explained that the mineral probably came from carbonate-rich water, which interacted with the rock. This could also point to early Mars being warmer than previously thought.
莫里斯博士解释说，富含碳酸盐的水和石头发生反应，从而产生了碳酸盐。这也可以解释为什么火星过去比我们想像的暖和。
Crystal twinning patterns in a leucite crystal from volcanic rock, observed in polarized light by Dr. Michael M. Raith of the Steinmann Institut, University of Bonn, Bonn, Germany. Dr.
火山岩中白榴石的晶体结构，来自德国波恩大学施泰因曼学院的迈克尔·m·雷斯教授用偏振光照射白榴石并拍摄到了该照片。
Dr Khurana, who witnessed the crash, said he initially feared the pilot would have "very serious, very tragic" injuries after the plane "dropped like a rock".
霍拉纳医生目击了整个事故过程，当飞机像一块石头掉在地上时，他担心飞行员会受伤很重。
Dr Khurana, who witnessed the crash, said he initially feared the pilot would have "very serious, very tragic" injuries after the plane "dropped like a rock".
霍拉纳医生目击了整个事故过程，当飞机像一块石头掉在地上时，他担心飞行员会受伤很重。
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