气体流量突变后，不同流型下其压力变化趋势相同。
For various flow patterns, the pressure evolution has the same tendency.
测定置换前、后的左心房和左心室压力曲线，以及主动脉流量曲线。
Left atrial, left ventricular pressure curves and aortic blood flow curves were measured beret and after mitral valve replacement.
改造后的液压系统流量充分、压力稳定、动作迅速，且调整和维修保养方便，故障率低。
The transformed hydraulic system has abundant flow capacity, stable pressure, swift motion and low failure rate and it is convenient to adjust and maintain.
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