Dissociation and ionization of air bring on lower drag coefficients of the orbiter than that obtained from perfect gas model, while the location of pressure center moves forward.
空气的离解和电离导致轨道器的阻力系数比完全气体计算值低，压心位置前移。
2
And the methane hydrate became loose and released the gas during dissociation process.
气水合物分解则是一个不断释放气体，由密实变得疏松的过程。
3
If this pressure reduction is enough to cause dissociation, then gas from the hydrate layer is released and can be extracted at the same time.