The pressure will result in the formation of a vapor pocket.

压力将导致形成一个蒸汽口袋。

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Conclusion:The attic retraction pocket reflected the negative pressure of middle ear and its pathogenesis was related with the function of Eustachian tube, inflammation and pneumatization of mastoid.

结论上鼓室内陷袋反映中耳负压状态，其发病机制与咽鼓管功能、炎症、乳突气化程度相关；

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Results show that the pressure field and fluid field of the circular main oil pocket are stable and proportional;

结果显示，圆形主油腔使压力场及流场稳定、均衡；

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"By that I mean try to imagine creating a cavity inside your mouth without any air bubbles and by letting in no air through your lips or throat -- it's basically impossible at sea level because the air pressure outside your mouth pushes the air pocket closed, " he said.

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