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- Longitudinal ultrasonic guide wave dispersion equation of inviscid liquid-filled pipe is analyzed theoretically. 从理论上得到了充非粘性液体管道中纵向超声导波的频散方程。
- It is the focus to get eigen equation of all kinds cross section waveguide in guide wave optics. 求解各类截面波导的本征方程,一直是导波光学研究的焦点问题。
- Stoneley wave is a kind of guide waves propagating along the liquid\|solid interface in well. 斯通利波是一种沿井壁传播的声波,当声波脉冲与井壁和井内流体的界面相遇时就会产生斯通利波。
- The recent advances in ultrasonic guided wave testing technique are summarized. 摘要综述近年来超声导波检测研究的最新进展。
- It is necessary to process the waveforms of long spacing sonic logs and identify the associated guide waves. 但是必须对长源距声波测井波形进行处理,分辨出相应的导波。
- Guided wave second-harmonic (SH) generation can not be phase matched automatically by Cerenkov radiation scheme. 用波导产生倍频波时,如果倍频波进入辐射模区,仍然有相匹配问题。
- Based on the ultrasonic guided wave technique and the dispersive waveform prediction method, a method about how to image defects in pipes is presented. 摘要在导波传播理论和频散波形预测理论的基础上，研究了超声导波在检测管道时，如何利用时域波形重构缺陷图像的问题。
- The transmitter generates guided wave in the plate according to magnetostrictive effect,and then it propagates in the plate and is reflected by the damages and edges of the plate. 根据反射信号的到达时间和波在板中传播的速度,可判断出板中缺陷所在位置。改变恒定偏置磁场与时变磁场的方向可以在板中激励不同波型的导波。
- She paid her way by acting as a guide. 她当导游来维持生活。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
- Instinct is not always a good guide. 凭本能行事不一定都对。
- Radio2 can be heard on the long wave band. 第二广播电台可在长波段收听到。
- Are you suggested I am a tour guide? 你是不是建议我当导游？
- The paid his way by acting as a guide. 他当向导来抵他的费用。
- Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through "variable cross-section" of metal bar embeded layer was put forward. 摘要运用波动的经典理论，提出了导波在金属杆嵌入层“变截面”传播时波速改变的“等效弹性模量”的概念。
- I am able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。
- A wave broke across the surface of the pool. 一个波浪从池水表面掠过。
- Mr Forster and his guide entered upon this portion of the glacier. 福斯特先生和他的向导进入了冰河地区。
- I was able to pick you up on the short wave radio. 我能用短波收音机收听到你的信号。
- The guide drew our attention too the magnificent carved paneling. 导游把我们的注意力引向华丽的雕刻镶木上。
