On the one hand flammable ice or in the vastness of the ocean bottom, or at risk far alpine permafrost zone, the development very difficult.

一方面是可燃冰要么位于浩瀚的大洋底部，要么位于高寒险远的冻土带上，开发的难度非常大。

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Flammable gas which was difficult to treat and polluted environment could be converted into a harmless compound by flare regularly during crude production and processing.

在石油开采和加工过程中经常将难以处理和污染环境的可燃气体通过设置火炬使其转化为危害极小的化合物。

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