Finally, the color harmonic Doppler method is brought up to enhance the effect of the Average Filtering method.
论文还采用彩色谐波多普勒的方法对均值滤波法进行了改进。
Objective:To seek for a new Echo Doppler method which can more sensitively detect changes of left ventricular diastolic function in NIDDM.
目的：应用肺静脉血流图结合二尖瓣血流图评价糖尿病心脏病变引起的左室舒张功能变化，旨在探讨更敏感的检测方法。
This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.
本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。
This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.
本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。
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