three stable state

The three models of virulent gas leak and diffusion are established, respectively is: continual stable state leak and diffusion model, limited period stable state leak and diffusion model, transient state leak and diffusion model.

建立开发了三种有毒有害气体泄漏与扩散模型，分别为：连续稳态泄漏与扩散模型、有限期间稳态泄漏与扩散模型、瞬态泄漏与扩散过程模型。

According to analysing China's macroeconomy the three-year deflation is relieved to a certain extent and a turn for economic growing appears but the foundation of the turn is not stable and general demands lie in a common state.

分析我国宏观经济形势可以得出：长达三年的通货紧缩局面得到了一定程度的缓解，经济增长出现了转机，但转机的基础还不稳固，总需求依旧不旺。