查询词典 square wave

The study covers the vertical displacement distribution character of each mode of Rayleigh wave, theoretical dispersion curve character of multi-modes Rayleigh wave and the characters of the max-mode Rayleigh wave dispersion curve in different layers structure, which are velocity increasing with deep, high velocity layer within underground, low velocity layers within undergroan and high velocity surface layer, within the depth of 15 meters.

研究了地层速度随深度递增型、地层中有硬层或软夹层型、表层为高速的公路型等4种地层结构在15m深度内，瑞利面波各阶模态的位移幅度分布特征、多阶模态面波的理论频散曲线特征以及不同地层结构上的&最大模&面波频散曲线的特征。

Especially the deficiencies of the research work in scattered wave numerical simulation and its applications were summed up:①geometry is unseemliness;②lack of study systematically in the scattered wave field characteristic;③lack of study systematically in the scattered wave field recognize and its interpretation;④lack of the program for scattering image.

对散射理论及应用研究成果进行了系统评述，特别对前人关于散射波数值模拟和应用研究的不足进行了总结：(1)观测系统设计不合理；(2)对散射波的特征研究缺乏系统性；(3)对复杂散射波场的识别方法没有进行系统研究；(4)适合散射成像的处理软件还有待开发。

This is often referred to as a SWF (short-wave fadeout), SSWF (sudden short-wave fadeout) or a GSWF (gradual short-wave fadeout).

这经常指SWF， SSWF 或GSWF 。

In the regular wave tests at the same of slope bottom, the cut off frequency and the frequency of the maximum energy of infra-gravity wave are not changed for different initial wave steepness.

文中以相同相对水深之规则波试验去做比较，在频率方面，波浪尖锐度改变，其截断频率及亚重力波频率无太大的改变，而坡度改变，亚重力波频率会出现移至低频的现象。

Wave maker is the major equipment of wave simulating in the laboratory. Wave stimulating is very important to researches on ships, water conservancies, nautical construction, petroleum exploitation, etc.

波浪模拟对于船舶、水利、海上建筑、海上石油开采等诸多研究领域均具有重要的意义，造波机是实验室进行波浪模拟的主要设备。

In a contactless IC card that performs envelope detection on an ASK-modulated carrier wave and demodulates the carrier wave to recover data piggybacked thereon, demodulation is suspended during periods where there is no possibility of a change of a data value (from data 0 to data 1, or from data 1 to data 0) in the digital data piggybacked on the carrier wave.

一种非接触式IC卡，其作用是检波经ASK调制过的载波的包络线和对载波进行解调以恢复承载在载波上的数据。在这种非接触式IC卡中，在承载在载波上的数字数据的数据值不可能变化（从数据0变成数据1，或从数据1变成数据0）期间暂缓进行解调操作。

By introducing one of stratified ocean models: two layer ocean and multicolored wave mech- anism of second order water wave, the problems of diffracting effects caused by second order multicol- ored wave are analyzed.

引入二层海的层化海模型及二阶水波的多色波作用机制，对层化海条件下的二阶多色波的绕射作用问题进行了分析。

Refer to the impacting-echo technology, we impacted the apex of the steel bar and incepted the reflecting stress \\ave through the resonator that fixed on the apex of the steel bar, and the value of the consolidating wave speed was calculated based on the timeof stress wave transmitted and the length of the steel bar, so, identifying the reflecting signal is the key of the consolidating wave speed method.

借鉴于冲击回波技术，固结波速的测定方法是在钢筋测杆的出露端施加瞬态冲击载荷，由安设在测杆顶端的传感器接收反射应力波信号，根据应力波的走时和测杆的长度折算固结波速的大小，因此反射信号的识别是固结波速法检测混凝土强度的技术关键。

In Chapter Two, some methods such as electron microscope, DNA ending label and MTT measurement were used to studied the changes of apoptosis, necroses and cell vigour of leukaemia K562 cell trunk and HL-60 cell trunk irradiated with millimeter wave. Different effects of millimeter wave to leukaemia cell trunks and human marrow cells were observed clearly. Human marrow cells were not so sensitive to millimeter wave radiation as leukaemia cells.

第二章，利用电镜技术、DNA末端标记、MTT活力测定等方法，研究了毫米波对红白血病K562细胞株、人类急性早幼粒白血病细胞株HL-60及正常人骨髓单核细胞的细胞超微结构、细胞凋亡、细胞活力的影响，结果发现毫米波辐射对正常人骨髓细胞及白血病细胞的影响明显不同，正常人骨髓细胞所受影响较小，特别是功率密度小的毫米波对其无影响；而白血病细胞受辐射后发生显著的凋亡或坏死，细胞活力显著下降，该效应具有明显的功率窗和时间窗。

The problem is simplified as a circular lined tunnel in half-space. The series solutions for the scatting waves in half-space and lining under the actions of P wave and SV wave are derived by wave expansion method under the assumption of larger circular arc.

接着，在对地震积分位移时程漂移、模型边界条件、模型横向计算范围几个数值动力计算的基本问题进行研究的基础上，用FLAC3D软件详细分析了山岭隧道洞身段在不同埋深、地震强度、激振方向、围岩和衬砌刚度条件下的地震响应。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。