In this paper, the mudstone acoustic time difference method and the vitrinite reflectance method are used to calculate the Lower Cretaceous denuded thickness in the Santanghu basin.
文中利用泥岩声波时差和镜质体反射率法计算了三塘湖盆地下白垩统的剥蚀量，两种方法得出的结果吻合较好。
By researching on plenty of data, we put forward a DSP-core ultrasonic flowmeter's measurement and control module with Time-difference method.
通过研究大量的资料，提出了以DSP为核心的时差法超声波流量计测控模块。
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。
Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced.
介绍了超声波时差法风速测量的基本原理，以及基于ARM微控制器的风速测量系统的实现方法。
Ultrasonic wind velocity measurement with time-difference method and wind velocity measurement system based on ARM micro-controller were introduced.
介绍了超声波时差法风速测量的基本原理，以及基于ARM微控制器的风速测量系统的实现方法。
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