A friendly polar bear loving nothing more than an audience and climbing out of his snowy bed to give a cruise ship a wave was caught on camera by a photographer, the Daily Mail of London reported.
据英国《每日邮报》报道，一位摄影家日前在北极斯瓦尔巴德群岛拍到一只超有表现欲的好客北极熊，当一艘游艇经过它家附近时，它从雪窝中爬出来，向过往的人们挥掌执意。
Polar or linear plot for far-field or ground wave radiation pattern.
极地或辐射型线性情节的远场或地面波。
The displacement solution is constructed by applying the symmetry of scattering of SH-wave and the method of multi-polar coordinate system.
利用SH散射的对称性和多极坐标方法构造了问题的位移解。
The multi polar coordinate and complex function are used to put forward an approximate analysis method for scattering of steady P wave around a circular lining in half space.
本文采用多极坐标和复变函数方法针对半无限空间中P波在一衬砌周围的散射问题提出了一种近似求解分析方法。
The main topic of this dissertation is the properties of polaritons that result from the coupling between the electromagnetic wave and the lattice wave in polar crystals with strong nonlinearity.
本论文主要从理论上讨论与研究强非线性极性晶体中电磁波和长光学波格波耦合形成的极化激元的特性。
After analyzing the spectrum of a group of signals, non-polar differential exponent pulse signal was selected as carrier wave, which can separate therapy threshold and ache threshold.
通过对载波信号的频谱分析，提出了一种能分离治疗阈值与疼痛阈值的无极性指数脉冲。
P-wave displacement is a polar vector, and its direction remains unchanged when we move it from right hand coordinate system to left hand coordinate system(or in the opposite way).
纵波位移是极向量，在坐标系由右手坐标系变成左手坐标系（或相反）时，不改变位移方向；
The basic equations and the polar curve method to solve the initial parameters of shock wave in rock are also developed.
给出了求解岩石冲击波初始参数的基本方程和极曲线方法。
The displacement solution is constructed by applying the symmetry of scattering of SH-wave and the method of multi-polar coordinate system.
应用复变函数、多极坐标方法研究弹性半空间中界面附近可移动刚性圆柱形夹杂对SH波散射与动应力集中问题。
The displacement solution is constructed by applying the symmetry of scattering of SH-wave and the method of multi-polar coordinate system.
应用复变函数、多极坐标方法研究弹性半空间中界面附近可移动刚性圆柱形夹杂对SH波散射与动应力集中问题。
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