他们在地面进化，却为了找寻地壳内的天然泉水而移居地下。
They evolved on the surface, but moved underground, following the natural water springs trapped in the planet's crust.
火山作用激发和强化了地壳内的热水循环萃取过程，同时也是银硐子矿床形成的强烈且稳定的动力系统。
Volcanic process, which has stimulated and strengthed the extraction by hot water circulation, is a strong and stable dynamic system for the formation of the Yindongzi deposit.
广泛用于防火的材料锑的需求加快，它也是最岌岌可危的元素，但元素沉积于地壳内的热流体，而且主要在中国提取。
Pace of demandAntimony, the element most "at risk", is used extensively for fire proofing, but is deposited by hot fluids inside the Earth's crust and extracted mostly in China.
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