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- echo wave measurement 回波测量
- According to the principle of ultrasound detection, this thesis describes a high-speed sampling system for ultrasound emergent wave and echo wave. 摘要根据定量超声波检测原理,阐述了一种针对超声波发射信号和回波信号的高速采集系统。
- The propagation velocity of ultrasound in patient's shinbone can be achieved by figuring out the time span between emergent wave and echo wave. 根据相关公式,只需计算出超声波发射信号和回波信号的时间差,即可获得定量超声波在受试者胫骨的皮质骨中传播速度。
- Accelerometer-buoy is widely used in wave measurement, but it is not an ideal method and peoplehavedifferent opinionsonit. 加速度计测波浮标已被广泛采用,但这种测波方式并非最理想的。
- It is more than one year that metallographic test being replaced by ultrasonic wave measurement is proved feasible and reliable in practical detection vermicular graphite rate. 并通过一年多的实践进一步证明了用声速法代替金相法测蠕墨铸铁蠕化率是可行的、可靠的。
- Liang, N. K. and H. K. Peng (1993), The Determination of Typhoon Design Wave By Symposium, Ocean Wave Measurement and Analysis, New Orleans, Louisiana, pp. 1039-1047. 梁乃匡、许明光、李汴军、彭海鲲(1993),”台湾南部海域海气象设计参数之研究”,台大海洋研究所专刊第79号,175页,委讬单位:中国石油公司海域及海外石油探勘处。
- Simulation of Landform's Echo Wave Based on DEM 基于DEM的雷达地杂波仿真
- The paper briefly investigates the ultrasonic testing of hydrogen-induced cracking (HIC) for in-service LPG tanks , and analyses types of echo waves of the cracking. 简要地探讨液化石油气贮罐母材中氢致分层类缺陷的超声波检测,对检测的几种超声波反射波形进行了分析,并给出了确定缺陷边界和深度范围的方法。
- The optic fiber sensors can be applied in many fields of well logging, such as measurement of downhole parameters (multiphase, press and temperature), acoustic wave measurement and etc. 光纤传感器在测井中得到了广泛的应用。
- The Molde YB-GT-3 Automatic Can Vacuum Sorter based thereon, with a probe detecting echo waves cyclically proves to be of high sentivity and reliability, competent to check and sort the majority of various cans for low vacuums. 应用这个方法制成的YB-GT-3型罐头真空度自动分选机适合国情,灵敏可靠,能对大部分品种的罐头进行低真空度的自动分选。
- The Echo Wave and Its Transmit Character in Traffic Flow 交通流中的回波及其传播特征
- The current period when astronomical tide, coastal units will be taken to avoid moisture wave measures to strengthen preventive. 目前正值天文大潮期,沿海有关单位仍将采取防潮避浪措施,切实加强防范。
- Wave measurement based on light refraction 基于光学折射的波面形态测量
- Analysis to fault of 354 warning radar without echo wave 354型警戒雷达无回波故障剖析
- Her performance was cheered to the echo. 她的表演获得长时间的喝采。
- Reproducibility of Pulse Wave Measurement 动脉脉搏波速度测量的重复性
- Making use of sound wave measuring well data in triaxiality earthquake explore explain in Banji well,increase explain accuracy and get the verification in practice. 在板集井田三维地震勘探解释中充分利用井田内的声波测井资料,以提高解释精度,并在实践中得到验证。
- The bird-song is the echo of the morning light back from the earth. 鸟的歌声是曙光从大地反响过去的回声。
- His words aroused no echo in their hearts. 他的话未能在他们心中引起共鸣。
- A Survey of Millimeter Wave Measurement in USSR 苏联的毫米波计量概况