The third period is the Jiamuhe group overmature dry gas in the late Jurassic Period to the early Cretaceous.
第三期是佳木河组过成熟干气，成藏期在侏罗纪到早白垩世。
原声例句
双语版 TED-Ed 演讲精选
Together, all these dry gases make up 99.93% of each breath you take.
我们吸入的空气中，99.93% 就是这些干燥气体。
英语百科
Dry gas
Drygas is an alcohol-based additive used in automobiles to prevent any water in the fuel from freezing, or to restore combustive power to gasoline spoiled by water. The name Drygas is actually a registered trademarked brand name, owned by Cristy Corporation. It is a liquid that is added into the fuel tank, that absorbs the water and keeps it in solution. Some brands contain methanol and some contain isopropyl alcohol.