The important theoretical results? such as the double convection-diffusion models, Bates-Morrison model and four stage models, as well as the related experimental achievements were intuoduced. Some problems that worth further research were summarized.

• 描述了两个典型的液化天然气涡旋事故，分析了分层和涡旋现象形成的机理，介绍了国内外提出的双向对流扩散模型、Bates－Morrison模型和四阶段模型等重要理论研究工作和实验成果，并提出了进一步深入研究的方向。