本文是研究利用天然地震PS转换波及PPP等二次波到时资料反演地壳上地幔速度结构的尝试。
An inversion of velocity structure of crust and upper mantle by using converted PS wave and multiwave PPP etc, is reported in this paper.
二次会议集中在Bing下一波改进中在设计方面的调整，这是几周之后，要在搜索引擎上应用的设计方案。
The second meeting focuses on design tweaks in Bing’s next wave of improvements, which would be released into the search engine a few weeks later.
委内瑞拉贬低玻利瓦尔汇率，这已经是一年中的第二次。这次废除了原来1美元对2.6波利瓦尔，并将官方汇率定在1美元兑换4.3强势玻利瓦尔。
Venezuela devalued the bolivar for the second time in a year, abolishing a preferential rate of 2.6 bolivares to the dollar and unifying the official exchange rate at 4.3.
在第二次大洪水后，只有波塞·迪亚的首都还有完整的水晶能量穹顶，颜色是一种难以置信的鲜绿色。
After the second deluge, only, the capital city of Poseida had a full crystalline energy dome, and it was an incredible emerald green color.
在第二次的记录过程中，利用位相板使参考图像产生半波位相延迟。
During the second recording, a phase plate is used to produce a half wave delay of the reference image.
本文主要研究细分方法及其应用，所做的工作包括四点小波的构造、尖锐特征造型和二次曲面造型。
In this thesis, we will investigate subdivision method and its application, including construction of four-point wavelets, generation of sharp features and quadrics.
并利用二次超声反射波进行了液位及泥位的双距离测量实验。
Using two times echo ultrasonic, Proceeding the liquid and mud double level measure the experiment.
结果表明，三波共振和二次失稳这两种机制都存在。
The results show that mechanisms of both resonant triad and secondary instability do exist.
我们用光谱分辨的二次谐波方法测定了连续波同步泵浦染料激光脉冲形状的非对称性。
We have determined the pulse shape asymmetry in a synchronously pumped dye laser using the method of spectrum-resolved SHG correlation.
为了提高时延估计精度，在广义相关时延估计的基础上本文又提出了基于基小波的二次加权法。
To improve the time delay estimation accuracy, this paper introduces the re-weighting method with mother wavelets based on the generalized correlation method for estimation of time delay.
结果表明埋藏在沙土中的导体球面不仅仅存在一次和二次散射波，而且还存在多次波和爬行波。
Results the calculation result shows that spherical surface of the conductor buried in sandy soil presents not only primary and secondary scattered waves but also multiple wave and creeping.
本文针对这种情况，对连续波雷达回波频谱幅度产生原因进行分析，提出了二次曲线拟合频谱幅度来估计加速度的方法。
The paper, through analyzing the forming of the amplitude spectrum of the echo, proposed a new method using quadratic curve fitting for it.
用二次微分简易示波伏安法测定了金刚石酸洗废液中的痕量镍。
Trace nickel in waste solution from process of diamond cleaning by acid is determined by second order differential simple oscillographic voltammetry.
计算结果表明，在弯管小曲率半径壁面附近，由于膨胀稀疏作用，爆轰波强度减弱，在局部出现前导激波与放热反应区的解藕以及二次起爆现象；
From the numerical results it is observed that as the curvature of the bend changes, different detonation phenomena occurred along the wall of the bended pipe.
本课题采用有限元分析方法研究非线性脉搏波在S型血管中的速度波，二次流。
In the research work, finite element analyses is adopted to study the velocity wave and the secondary flow of nonlinear pulsatile flow in the S-shaped curved arteries.
由于目的层反射弱、多次波发育，地震资料品质差，为此二次三维采集时选择了近似全三维的观测系统；
The quality of seismic data was poor because complex and special geological conditions make the reflectivity of the objective formations weak and multiples strong.
回到波蒙特，疲惫的卡巴顿要察看一下钻井工作，是在他和新伙伴第二次买的那块地里开钻。
Back in Beaumont, a weary Cal Barton was watching the drill work on the second tract he and his new partner had purchased.
槽波测量用速度检波器常产生高频谐振，是由于横向激励引起的二次谐振所致。
The high frequency resonance is generated usually by velocity detector used inseam survey. It is resulted from the secondary resonance due to the transverse excitation.
建立扭转弹性波主动控制系统的物理模型，研究二次源、误差传感器位置对最优控制效果的影响。
A physical model of the active control of torsional wave is set up in this paper. Dinfluence of error sensor and secondary source on the optimal control results is studied.
本文的主要工作就是利用大型通用有限元计算软件ANSYS模拟耦合腔行波管慢波结构的热特性和冷测特性并对该软件进行了二次开发。
The main work of this thesis is simulation of the thermal characteristic and cold-test characteristic for coupled-cavity TWT slow-wave structure with ANSYS, which is a finite-element software.
以二次光滑小波作为小波函数，对水果红外图像进行二维二进小波变换，计算了小波变换结果的局部模极大值点，从而得到了水果红外图像的轮廓。
A quadratic lubricity wavelet as wavelet function was defined to do the two dimensional dyadic wavelet transform on fruit infrared image, and to get local modulus maxima from the results.
本文将非线性调频技术引入引信探测体制中，利用线性调频波作为调制信号对射频信号进行二次调频。
In this paper, we present a new frequency modulation function on the basis of features of traditional non-linear frequency modulation signal.
槽波测量用速度检波器常产生高频谐振，是由于横向激励引起的二次谐振所致。
The high frequency resonance is generated usually by velocity detector used inseam survey.
槽波测量用速度检波器常产生高频谐振，是由于横向激励引起的二次谐振所致。
The high frequency resonance is generated usually by velocity detector used inseam survey.
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