查询词典 wave speed

First,we improve the basic minimum traveltime tree algorithm for firstbreak waves in order to speed calculation of 3D converted wave traveltimes.

其中，在保证精度的条件下，为了提高三维转换波走时计算效率，首先对初至波最小走时树基本算法进行了改进。

Physics a wave that is hypothesized to propagate gravity and to travel at the speed of light.

被广义相对论所预言的、以光的速度传播重力的波。

With the computer-controlled filament winding sanding,and side porting machines in our new facility ,Wave Cyber can meet the increasing demand for high-quality membrane housing pressure vesseis,based on the hig speed and precision provided by these machines,a range of high preforming products are made.

在唯赛勃的新厂房内，我们使用计算机控制的缠绕机，打磨机和侧开口机器，从而保证满足膜壳压力容器不断增长的市场需求。由于这些机器能够进行高速生产，并提供足够的精确性，我们有能力生产一系列高性能的产品。

To SR-12 hydraulic vibration system of roller as an example, based on the power bond graph - block diagram and Simulink simulation software, In the simulation, focusing on the factors of the pulse of pipeline 、 the frequency of the speed and the pressure wave attenuation peak, so as to provide reference to the actual engineering design.

以 SR-12压路机振动液压系统为例，基于功率键合图-方块图方法及 Simulink 控制仿真软件，在仿真中，着重考察与管路的脉动频率、波形衰减速度和压力峰值等相关的因素，从而为实际的工程设计提供参考。

Prize-giving ceremony of award of plume of 2008 year gold rings down the curtain satisfactorily, the net swims 10 years high speed develops wave in the wind lingering sound, lifted Chinese net swam 2009 the new page of industrial magnificent picture scroll!

2008年度金翎奖颁奖典礼圆满落幕，网游十年高速发展的袅袅余音，掀开了2009年中国网游产业瑰丽画卷的新篇章！

The data of the significant wave height and the wind speed from TOPEX satellite altimeters are compared with the data from the buoy and the validity of data from TOPEX is analyzed.

利用TOPEX卫星高度计和日本气象厅浮标观测资料，对东中国海的有效波高和风速进行比较，分析了卫星高度计资料的有效性。

The influence of two parameters, frequency and pulse width ratio of wave pulse brush plating speed about, is studied on the base of experiment in this paper.

在低频范围内，通过试验研究了矩形波脉冲频率 f，脉冲宽度比 B对刷镀速度的影响规律。

Firstly, we propose solid-state continue-wave laser to crystallized poly-Si films, the distinction of excimer laser, CW-laser possessed high stability, reliability, durable and low-cost. In this way, we used laser scanning speed and energy to analysis a status of grain lateral growth and crystallizes mechanism for various condition, furthermore, we succeed to crystallize great grain size more than 10 μm. To compare excimer laser crystallization and Sequential lateral solidification, CW-laser don't needed extra procedure to carrier out large grain size.

首先，吾人提出有别於传统准分子雷射结晶技术的固态连续波雷射横向再结晶技术，固态连续波雷射具有高稳定的特性且相较於准分子雷射具有可靠、耐用、价廉且维护成本低的优点，在此我们利用不同的扫描速度与雷射能量，分析出在不同条件下的横向结晶状态与其成长机制，并且成功的成长出大於10 μm的晶粒大小，相较於准分子雷射结晶与循序性侧向结晶，固态连续波雷射不需额外的步骤即可达成大晶粒成长。

What's more, as the vehicle approaches the speed of sound, it produces a frontal shock wave which liquefies the earth ahead, so the wheels end up carving through ground, rather than simply rolling over it.

更重要的是，由于车辆接近音速的，它产生正面冲击波的液化地球未来，所以车轮最终通过地面雕刻，而不是简单地在它滚动。

In this paper,a kind of frequency variable adjusting speed system based on single-chip microcomputer AT89C51 is introduced as master controller,adopting the SA8281 as a sine wave generator.

摘 要：本文介绍了一种由AT89C51单片机为主控制器的变频调速系统，采用SA8281作为正弦波发生器。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。