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- critically refracted longitudinal wave 臨界折射縱波（LCR）
- Critical refracted longitudinal wave 臨界折射縱波
- Rail stress measurement with critically refracted longitudinal waves 利用臨界折射縱波檢測鋼軌應力
- The result of analysis shows that the travel time of the refracted arrival of the longitudinal wave has a linear relationship with porosity over a fairly broad range, it has nothing to do with the variations of frequencies and coefficient of permeability. 結果表明:滑行縱波(第一類(lèi)縱波)的聲波時(shí)差與孔隙度在相當寬的范圍里有近線(xiàn)性的對應關(guān)系而與頻率和滲透系數的變化幾乎無(wú)關(guān);
- A pressure disturbance cannot drive the energy release profile uniformly to the anti-node region to result in a sustained longitudinal wave. 壓力擾動(dòng)不可能驅使能量釋放分布圖移至波腹區域以產(chǎn)生持續的縱向波。
- Secondly, the relation between longitudinal wave propagation velocity and resin-bonded stiffness of full length anchoring bolt is simulated. 然后模擬縱波在全長(cháng)錨固錨桿內傳播速度與樹(shù)脂-圍巖粘結剛度之間的關(guān)系；
- This paper deduces the errors sources from the process of ultrasonic longitudinal wave testing and evaluates its uncertainty. 本文分析了超聲波探傷縱波檢測的誤差來(lái)源，評定了在探傷過(guò)程中的不確定度。
- Secondly,the relation between longitudinal wave propagation velocity and resin-bonded stiffness of full length anchoring bolt is simulated. 然后模擬縱波在全長(cháng)錨固錨桿內傳播速度與樹(shù)脂-圍巖粘結剛度之間的關(guān)系;
- Upon the interface of homogenuous isotropic elastic media the incident longitudinal wave produces the reflected longitudinal (P-P) wave and upgoing converted shear (P-SV)wave. 在均勻各向同性介質(zhì)的分界面上入射縱波時(shí)，除產(chǎn)生縱波反射P-P波外，還會(huì )產(chǎn)生轉換橫波的反射P-SV波。
- Contrast with common vertical longitudinal ultrasonic wave, slant longitudinal wave could be applied to test the nozzle welds on vessel, header, bolts and austenite material. 介紹了超聲縱波斜入射法在電站鍋爐壓力容器管座角焊縫、螺栓和奧氏體鋼鍛件等部件探傷中的應用。
- The longitudinal wave cannot exist near the surface of a solid, and those exist near it are gliding irrotational waves. 縱波不能在固體表面存在,在固體表面存在的是相應的滑行集散波。
- The dispersion curves and simulated dispersion relationship of longitudinal waves without the Langmuir wave, the ion sound wave and the ion plasma wave are obtained. 得到了除朗繆爾波、離子聲波和離子等離子體波外其它縱波的色散曲線(xiàn)和擬合色散關(guān)系。
- Numerical results demonstrate that laser generated surface acoustic wave is comprised with three components, namely surface skimming longitudinal wave, surface shear wave and Rayleigh wave. 數值結果表明：在激發(fā)的超聲表面波中包括掠面縱波、表面橫波和單極性的Rayleigh波等三種模式。
- Chapter 4 presents the study on the longitudinal wave propagation and dispersion in single-walled carbon nanotubes through the use of the continuum mechanics and the molecular dynamics simulation based on the Terroff-Brenner potential. 用連續介質(zhì)力學(xué)方法及基于 Tersoff-Brenner 勢的分子動(dòng)力學(xué)方法對比研究了碳納米管中縱波的傳播及頻散問(wèn)題。 主要考慮了微結構對碳納米管中縱波頻散的影響。
- Based on the propagation theory of the longitudinal wave in the pile, the present paper presents a technique for determining such parameters as back-and-forth time of reflection wave and apparent reflection coefficient. 摘要本文以縱波在桿中傳播的理論為根據，介紹一種用于確定反射波往返時(shí)及視反射系數等參數的方法。
- In longitudinal waves, it is measured from compression to compression or from rarefaction to rarefaction. 在縱波中是以密波與密波或疏波與疏波之間的距離來(lái)量度的。
- It is pointed out that the wave of plasma channel can be decomposed into transversal and longitudinal wave, and different effects of the wave on the material removal in different pulse width are analyzed. 指出放電通道的波動(dòng)可以分解成縱波和橫波2個(gè)分量，并分別分析了短、長(cháng)脈沖加工時(shí)橫波和縱波對材料蝕除的不同影響。
- Light is refracted when passed through a prism. 光線(xiàn)經(jīng)過(guò)棱鏡時(shí)產(chǎn)生折射現象。
- Utilizing the characteristic of the ultrasonic longitudinal wave,a new method that judges the density of oil by measuring time difference and phase place is put forward,and an instrument is designed. 利用超聲波縱波的特性,提出一種利用超聲波在油料中傳播的時(shí)間差和相位差兩項指標綜合判定油料密度的方法,并設計了檢測裝置。
- Based on analysing the geneses of gravel sand reservoir in tan-hai area, the reservoir lithology is identified with cross plot technique of yang surname modulus and longitudinal wave slowness. 摘要通過(guò)對灘海地區含礫砂巖儲層成因的分析，利用楊氏模量與縱波時(shí)差交會(huì )圖法識別出巖性。
