多普勒超声检测 三尖瓣返流压差(PGTR)、测量返流速度及估测肺动脉收缩压、肺动脉血流频谱曲线形态，收缩期肺动脉血流速度(VPA)，血流加速时间(AT)，减速时间(DT)，右心...
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风流压差 leeway angle ; crab angle
气流压差 air-flow differential
航向流压差 current course
流压差修正量 allowance for current
修正流压差的航向 course corrected for current
三尖瓣反流压差 TRPG ; PGTI
差压流量计 differential pressure flowmeter ; differentialpressuretypeflowmeter ; pressure differential flow meter ; differential pre ure type flowmeter
门限流动压差 threshold differential pressure of flow ; thresholddifferentialpre ureofflow
双管压差流量计 differential twin-flowmeter ; flowmeter
研究了差压波动信号与两相流系统参数之间的关系。
Relations between differential pressure signal and two-phase flow parameters are studied in the dissertation.
模拟了开门过程病房内外压差的变化，门附近的流场状况，以及进出门气流的变化状态，探讨了开门对污染物扩散的影响。
Simulates the changes of pressure difference, velocity field and the air flow in the door opening process, and discusses the influence to the contamination dispersion.
选用三种颗料状物料，在四种不同倾斜度的斜管中测定了不同负压差和固体流率条件下的气体流率。
The experimental data of gas flow rate in the bed with four slant angles and three kinds of particle materials are obtained.
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