青云翻译

Replaced by natural gas and combustible ice, because some of the key components of these two energy closer.

Replaced by the gas and combustible ice, because some key components of the two energy close to each other.

Substitute by the natural gas and the inflammable ice, because these two kind of energy certain essential ingredients are quite close.

With natural gas and fuel alternative to ice, the two energy some of the key ingredients is closer to.

Replaced by the gas and combustible ice, because some key components of the two energy close to each other.