...PNPB Positive-negative Pressure Breathing 正负压呼吸 PNPR Positive-negative Pressure Respiration 正负压呼吸法 PNPV Positive-negative Pressure Ventilation 正负压通气 ..
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Results Paradoxical respiration occurred and the intrathoracic pressure kept negative but with no bulge of malactic tissues after the fulfilment of the floating thoracic wall models.
结果浮动胸壁模型完成后，均出现反常呼吸，胸腔内压力为负值，未出现软化部分膨出；
The utility model comprises an air drum, a setting scale for air inflow, a positive negative pressure gauge, a respiration valve and a face mask;
本实用新型有一个气鼓，一个进气量设定标尺，一个正负压力表，一个呼吸活瓣，一个面罩；
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