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- The time lag between the direct wave and the scattered wave could be computed by using the simplex algorithm method. 当弯曲波在传递时遇到平板裂缝则会产生散射波，因此含有裂缝平板的板波讯号即包括弯曲波的直接波传与裂缝引起的散射波传。
- Crosswell seismic wavefield contains different wave such as reflection waves, direct waves, and tube waves. 井间地震波场丰富，含有反射波、直达波和管波等多种波型。
- The shape and energy distribution of direct wave is mainly influenced by drift,while the energy distribution of reflected wave is influenced mainly by the interface between coal and rock. 巷道对各道直达波能量分布及波列形状有明显影响 ; 煤岩分界面主要影响反射波能量分布。
- This method is to detect and track direct wave at receiving station.Received direct signals are integrated incoherently, filtered, made analysis of spectrum and then time synchronous signals are got. 在接收站对直达波进行检测和跟踪，再经非相干积累、滤波、谱分析等处理来提取同步信号，分析其性能。
- This paper uses the Quadratic/Linear Traveltime Interpolation (QLTI) ray tracing method to get the traveltime of the headwave including direct wave, reflection wave, and refraction wave. 采用旅行时线性/二次联合插值射线追踪算法(QLTI算法)对包括直达波、折射波、透射波在内的多种射线进行追踪,得到井间层析成像的旅行时,它的突出优点是精度高。
- It uses the time-frequency localization characteristic of the wavelet analysis and their correlations on the direct wave,target reflected signals and stochastic noise in multichannel GPR d... 通过实验数据和现场实测数据验证了该方法的有效性。
- Tannuri E A, Sparano J V, Simos A N,et al.Estimating directional wave spectrum based on stationary ship motion measurements. 马志良;罗德涛;主编.;近海移动式平台
- Using the concept of directional wave fields, the characteristics of the wave field around a detached breakwater were studied. 摘要本研究利用方向频谱探论离岸堤周围波场的特性。
- ground penetrating radar direct wave 探地雷达直达波
- She cast her eyes down to avoid direct eye contact. 她垂下双目以避免对视。
- I'll book you on a direct flight to London. 我将为你预订直飞伦敦的航班。
- In order to improve signal-to-noise ratio(SNR)in electric-magnetic vibroseis seismic prospecting, a phased-array vibroseis system that can generate a directional wave was developed. 为提高可控震源地震勘探数据的信噪比,采用能够产生定向地震波的相控震源,针对水平层状地下介质模型,给出了不同信噪比条件下的单震源、相控震源信号检测结果。
- He has chosen the most direct route. 他选取了最直的路线。
- Davidson M A, Huntley D A and Bird P A D. A practical method for the estimation of directional wave spectra in reflective wave fields[J]. Coastal Engineering, 1998,33, 91-116. 302-311. 三传感器波浪水槽二次反射主动吸收方法是加拿大科学院水力中心最近开发的一种水槽反射波控制技术。
- She's very direct, believes in speaking her mind. 她为人直率，喜欢有什么说什么。
- Can you direct me to the shoe department? 请告诉我卖鞋部在哪里。
- Be there a direct train for Beijing to Nanning? 从北京到南宁有直达车吗？
- See that direct heat does not play on it. 当心别让它直接受热。
- It's a long way by road the train is more direct. 走公路很远--乘火车近。
- Would you please direct me to the zoo? 请问去动物园怎么走?
