Objective To explore clinic value of foam test of amniotic fluid in high risk pregnancy of obstetrical department.

目的探讨羊水泡沫试验对胎儿肺成熟度预测的临床应用价值。

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Foaming and foam stabilization are significant to foam fluid.

起泡与稳泡是泡沫流体的重要特性。

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Especially, this model can also explain the yield stress and wall slip phenomena for foam fracturing fluid.

更为主要的是该模型还可以用于解释泡沫压裂液的屈服应力和壁面滑移现象。

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