充气泡沫泥浆由于比重低，液柱压力低，实现了负压钻进，能大幅度提高机械钻进，延长钻头寿命。
The aerated foam mud fluids can used in negative drilling, and enlarge the life of drilling bits for its low density, and low sap pressure.
以气液两相流理论为基础，分析了充气钻井的井筒压力分布问题。
Based on the theory of gas-liquid two-phase flow, the wellbore pressure distribution problems were analyzed in the aerated drilling.
软组织肿块或片状病灶内可见支气管充气、充液征象。
The bronchi filled with gas or fluid were soft tissue mass or sheet lesion.
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