The true of sample is very important due to the volatility and alterability of light aromatic hydrocarbon.

由于轻芳烃有一定的挥发性和变异性，样品的保真非常重要。

It is revealed that the montmorillonite interlayer space has the essence of alterability based on the alterability of montmorillonite interlayer space.

从蒙脱石层间域具有可改造性出发，揭示了蒙脱石层间域具有可改造性的本质。