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- Keywords: acoustics, muffler, transfer matrix, plane wave. 關(guān)鍵詞：聲音、消音器、傳輸矩陣、平面波。
- An eigenstate of momentum, on the other hand, has the form of a plane wave. 在其它方面一個(gè)動(dòng)量特征態(tài)具有一平面波形。
- A special type of unsteady motions which bear a resemblance to plane wave solutions of the linear theory of elasticity can be constructed. 一種特殊類(lèi)型的、和線(xiàn)性彈性理論中的平面波解有點(diǎn)相象的非穩態(tài)運動(dòng)可以建立起來(lái)。
- When an inhomogeneous plane wave is introduced into a dense dielectric layer, it can bounce between the two boundaries. 把一非均勻平面波引進(jìn)折射率較高的介質(zhì)層時(shí)，它會(huì )在上下界面間來(lái)回地“彈”射。
- It is important to recall that a sound wave in a nonhomogeneously deformed material cannot be a plane wave. 重要的是要記得，非均勻變形材料中的聲波不可能是平面波。
- Keep in mind that an idealized monochromatic plane wave must be depicted as an infinite wave train. 要記住，一個(gè)理想的單色平面波應當表述為一個(gè)無(wú)限的波列。
- The computational results are in accord with the results of plane wave Born Approximation. 計算結果與平面波玻恩近似結果符合得較好
- The results show that acoustic wave in pipeline propagates as plane wave with little falloff. 研究結果表明，聲波通過(guò)管道中介質(zhì)以平面波傳播且衰減較??；
- With plane wave method,it is proved that the 1D-USPC shares the same bandgap character. 利用平面波法證明了一維超聲光子晶體具有一般一維周期層疊結構光子晶體的禁帶特征。
- The bandgap structure of one-dimensional photonic crystal was calculated and derived with the plane wave method(PWM). 用平面波法研究了橢圓鋼柱與環(huán)氧樹(shù)脂組成的三維簡(jiǎn)立方晶格聲子晶體的帶隙結構。
- The description of a plane wave diffracted by a circular aperture is directly started from the Maxwell's equations. 平面波經(jīng)圓孔光闌衍射的表征是直接基于麥克斯韋方程組。
- The reflection and transmission coefficients of the plane wave at the birefringent surface were deduced. 導出了平面波在雙折射介質(zhì)表面的反射系數和透射系數公式。
- If the wavefronts are parallel lines, the waves are called plane waves. 假如波前為一些互相平行的輪廓面，這波就叫平面波。
- This is equivalent to an angular distribution of constituent plane waves. 這等價(jià)于各種成分的平面波的角分布。
- Therefore, these equations with vanishing body forces cannot admit plane wave solutions under an arbitrary initial state of stress. 因此，這些方程當徹體力為零時(shí)，在任意的初始脅強狀態(tài)下并不具備平面波解。
- The article calculates the perfectly conducting thin cylinder RCS in incidence of TM plane wave by using the two different basis MOM. 利用子域基和物理模式基兩種不同基函數下的矩量法對平面波照射下的理想細導電圓柱的單站RCS進(jìn)行了計算和分析。
- If the wavefronts are parellel lines, the waves are called plane waves. 假如波前為一些互相平行的輪廓面,這波就叫平面波。
- Acoustic scattering from submerged double infinite concentric cylindrical shell insonified by incident plane wave is studied. 研究水下雙層無(wú)限長(cháng)圓柱殼體的聲散射。
- In this paper,the unilateral frictional interface under the assumption of Coulomb friction in anti plane wave field has been investigat ed in detail. 在Coulomb摩擦假定下 ,詳細地討論了反平面波場(chǎng)中單側摩擦界面問(wèn)題 ;
- The plane climbed until it was clear of the clouds. 飛機爬升穿出了云層。
