波振幅的改变与心输出量及心脏的泵血功能，尤其是肺动脉楔压之间无明显关系。
The variation of R wave amplitude has little relation with cardiac output, heart pumping function, especially with pulmonary wedge pressure.
目的探讨连续波多普勒超声在评估二尖瓣返流患者的肺动脉楔压中的作用。
To confirm the utility of continuous wave Doppler echocardiography in assessing pulmonary artery wedge pressure in patients with mitral regurgitation.
本文提出一种新颖的多重全息术，它是利用旋转光楔调制平面参考波的传播方向，实现编码参考光记录获得多重全息图。
A new technique for multiplex holography is proposed in which all reference beams are encoded and recorded by means of a rotating prism to modulate the plane reference beams.
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