查询词典 high velocity

High frequency ground wave radar remotely measures fluid velocity of sea surfaceon wave beam's direction by the emitted and received radar waves variety, so remotesensing of sea surface fluid velocity can be carried on one, two or more stations.

因为高频地波雷达是利用发射和接收雷达波频率的变化来遥感波束方向上的海面的流速，因此，高频地波雷达对海洋表层流速的遥感有单站遥感、双站遥感和多站遥感之分。

This paper brought forward some new design schemes based on the principle and signal processing algorithm of velocity detector, and introduced the hardware construction of the velocity detector based on Depolarizer and S3C2410A microprocessor. The high-efficient ARM program of radical 4-FFT was designed according to the architecture characters of ARM core. In the process of code designing, the instruction scheduling and register allocation were controlled subtly, and the fixed-point number's storage format and computing method of float number were provided. Barrel shifter and 5-lever pipeline were fully utilized and the pipeline interlock was avoided.

针对多普勒测速仪的基本原理和信号处理算法提出了新的设计方案，介绍了由多普勒收发前端和三星S3C2410A处理器构成的测速仪的硬件结构；并结合ARM内核设计特点实现了基4时间抽取快速傅里叶变换算法，针对大多数ARM处理器硬件上不支持浮点运算，提出了把浮点数以定点数格式存储和计算的方法，充分利用桶型移位器和5级流水线，避免了流水线互锁问题。

Using the data of sound velocity experiments, static high-pressure research and geophysics, the temperature coefficient of enstatite′s compressional wave velocity, thermal and density anomalies in lower mantle are estimated.

在上述的数据分析过程中，还得到了下地幔区钙钛矿型SiO〓相态纵波声速的温度系数，并由此估算出下地幔底部的温度异常幅度为65-137K，〓约为2.8/。

Based on the item of national high technology development project, the thesis studies the reasonable construction pattern of the tunnel portal, incidence of the micro-pressure wave and the the effect of bell-mouthed hood, lacunaris hood and expansile hood on alleviating the micro-pressure wave in the situations of single line and double line, obtains the relationship between the max micro-pressure wave and the velocity of the train as well as the relationship between the max micro-pressure wave and distance of measuring point at the velocity of 100km/h-550km/h, compares the different alleviative effect of the three different hood to max micro-pressure wave and finally proposes the reasonable construction pattern of the tunnel portal.

本文针对国家高技术研究发展计划(863计划)课题"磁浮交通沪杭线越黄浦江隧道的工程技术问题研究"，在单洞单线和单洞双线两种工况下，对隧道洞口的合理结构形式和影响范围，以及洞口喇叭形入口缓冲段、多孔壁入口缓冲段以及隧道出口膨胀室对减缓微压波的作用进行了研究，得到了磁浮列车速度在100km/h～550km/h时隧道出口微压波最大值与速度的关系以及微压波最大值与测点距离的关系，比较了三种不同形式缓冲结构对微压波最大值的减缓效果，提出了隧道洞口的合理结构形式。

How to reduce the energy consume so that the quality of the interceptor would be reduced and enhanced the final velocity and average velocity are the key technology of the system scheme for LRADI. Aimed at the character of the LRADI, analysis and study the questions of adoption"interval time can be changed double pulse Solid Rocket Motor"and"double high cast virtual target composition guidance trajectory".

因此如何降低能量的消耗、减轻拦截器的重量，提高末速度和平均速度成为远程反空气动力目标拦截器总体方案的一个重要关键技术，本文针对远程反空气动力目标拦截器的特点，提出和论证了采用"间隔时间可调的双脉冲固体火箭发动机"和"双高抛虚拟目标复合导引飞行弹道"两条新技术途径相关的各种问题。

In order to solve the problem,starting from the analysis of the simplest plane wave numerical theory,we derived the formula of relative phase velocity and group velocity under the condition of arbitrary high-order finite-difference approximation,and gave the computational method for acquiring the optimum Courant number,and then analyzed the anisotropic effects due to finite difference approximation.

针对此，从最简单的平面波数值理论分析出发，推导了任意高阶有限差分近似条件下相对相速度和相对群速度的计算公式，给出了求解最佳Courant数的计算方法，分析了差分近似造成的各向异性效应。

The simulated results show that the fishtail shape coefficient is high when the feed velocity is relatively low and will be reduced with increase of feed velocity.

结果表明：进给速度相对较小时，环件鱼尾形状系数较大，随着进给速度进一步增大，鱼尾形状系数反而减小。

Through using the high-speed digital camera technology,research is carried out on dynamic combustion process of silicon delay explosive ,In addition,instantaneous velocity as well as average velocity of the combustion of silicon delay explosive is calculated.

采用高速摄像技术对硅系延期药的动态燃烧过程进行了研究，计算了延期药燃烧的瞬时速度和平均速度。

The soil urease and invertase activity effected by Hg was investigated in different fertility soils. The results show that soil urease activity、maximum reaction velocity (Vmax、Vmax/Km) and reaction velocity constant k have remarkably negative correlation with Hg concentration so that these can be used as ecological indexes of soil polluted by Hg, Km changes a little indicating that the reaction mechanism of Hg and urease is nonreversible competitive restraint. Urease of low soil fertility is more damaged by Hg than that of high soil fertility, with severe pollution at Hg concentration of 6.00 and 14.79mg/kg respectively; while invertase is less sensitive to Hg than urease. Cultural time has less influence on the relationship of soil enzyme and Hg concentration.

对不同肥力土壤脲酶和转化酶活性受汞影响进行了研究，结果显示，土壤脲酶活性、最大反应速度Vmax 、Vmax/Km和反应速度常数k与汞浓度呈现显著或极显著负相关关系，表明其可作为土壤汞污染的生态指标；米氏常数Km则变化较小，表明汞与脲酶作用机理为不可逆竞争抑制；低肥力土壤脲酶比高肥力土壤脲酶受汞毒害作用更强，当汞浓度分别为6.00和14.79mg/kg时即达到严重污染；而转化酶对汞的敏感性较差；培养时间对土壤酶与汞浓度间关系影响较小。

The researchers also found that overlying this high-seismic-velocity layer is a low-velocity zone that is much more apparent in their work than in past studies.

他们同时也发现上覆于该高速层的是比过去发表的结果更明显的低速层。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。