查询词典 sampled

On the working conditions, the input and output signals of gear transmission system is sampled.

与已有的试验结果和理论作对比，初步证明了此方法是正确而有效的。

The article presents the developing condition of PWM and SVPWM first.Then the theory of SVPWM is discussed in detail.The SVPWM is based on the thought of magnetic chain tracking.It makes the ideal magnetic chain circle of three-phased sysmmetry electric motor supplied by three-phased sysmmetry sine wave voltage for basis,uses the practical magnetic chain vector formed by the different switch modes of three-phased inverter to track the basic magnetic chain circle.During the course of tracking,the inverter changes the switch modes properly to form the PWM waves.Then the modulation wave of SVPWM is analyzed in detail.The modulation wave of SVPWM is implicit,but the analogous modulation wave in A-B-C axis needs to be calculated in order to expose the internal relation of SVPWM and SPWM.That is to show the implicit modulation wave of SVPWM. SVPWM actually is a transformed SPWM ruly sampled by the modulation wave which is injected by the zero prefaces based on space vectors.

本文首先对脉宽调制技术的发展现状进行了综述，在此基础上分析了电压空间矢量脉宽调制技术的发展现状；接着对空间电压矢量脉宽调制技术的基本原理进行了详细的分析和推导，SVPWM是基于磁链追踪的思想，它以三相对称正弦波电压供电下三相对称电动机定子理想磁链圆为基准，由三相逆变器不同开关模式下所形成的实际磁链矢量来追踪基准磁链圆的，在追踪的过程中，逆变器的开关模式作适当的切换，从而形成PWM波；然后详细分析了电压空间矢量脉宽调制技术的调制波，虽然SVPWM法的调制波是隐含的，但是为了揭示SVPWM法与SPWM法的内在联系，需要求出SVPWM在A-B-C坐标系上的等效调制波，也就是将SVPWM的隐含调制波显化；SVPWM实质是一种基于空间矢量在三相正弦波中注入了零序分量的调制波进行规则采样的一种变形SPWM。

Third, mensurated the front axles load-time history when truck was running on general tar-paved roads, mountainous roads and the proving ground enhancement roads, second sampled and pretreated to the load-time history with RPCⅢ software of MTS corporation, acquired the relationship of the frequence of the mean and amplitude load, obtained the zero mean equivalent loads using Goodman experiential fatigue equation, acquired the Weibull distributing functions of equivalent loads of respective roads.

第三，测定了汽车前桥在一般沥青公路、山区公路和试验场强化试验路面的载荷时间历程。对载荷时间历程进行了二次采样和数据预处理。采用雨流计数法得到了各路面的载荷均、幅值的频次关系，并根据Goodman经验疲劳公式，得到了零均值的等效载荷及相应的频次。利用数理统计的方法得到了各路面的等效载荷的Weibull分布函数。

When the goal gene was sampled 10 μL, the probe density was 15 μL, 20 μL was a reasonable dose to reflect a strong-weak tendency.

目的基因取10 μL时，探针取15 μL，20 μL的量能较为合理的反映由强到弱的趋势。

In order to achieve fast and high-quality rendering for point-sampled geometry, this paper proposes a single-pass point rendering algorithm.

针对点模型的快速高质量绘制问题，提出一种单遍绘制算法。

Its final target is to fully digitize the analogue receiver. The all digital receiver not just means digitizing every unit of the analogue receiver, but is a new receiver architecture. The two outstanding characters of this new architecture is: 1 It uses a high stable oscillator to generate a fixed frequency source. And both the sample signal and the local carrier required are obtained from it. 2 Once the received signal has been sampled by a high speed A/D converter, some digital signal processing algorithms will be used to realize all further processes, such as digital down-converting, match filtering, symbol timing, channel equalizing, carrier synchronizing, demodulating and decoding.

全数字接收机并不是简单地将传统的模拟接收机中所有的部件数字化的结果，而是一种全新的接收机体系结构，这种新的体系结构具有两个最为突出的特点：1）采用高稳定度晶体振荡器产生一个固定的本地频率源，接收机中所需的采样时钟信号和本地载波均从这一固定频率源得到；2）接收信号一旦经过高速模数转换后，余下的工作如频率变换、匹配滤波、定时同步、信道均衡、载波同步、符号解调、判决与译码等全部由数字信号处理算法来实现。

A type of probability sample in which aggregations of sampling units, called clusters, are sampled at some stage in the process.

是一种将样本单元聚集在一起的随机抽样法。样本群在抽样的某一步骤被抽出。

Those chosen, who are aged between 18 and 73, will undergo a day of tests at sea level, to establish their metabolic baselines and have their DNA sampled.

被选定的人年龄在18到73岁之间，将在海平面高度作一系列的测试，记录下他们的代谢状况，并进行DNA采样。

Maple sugar is popular Canada tradition festival section , it's a furious spring produces the maple sugar farm quilt in March every year when,The farm who produces maple sugar's is glossed over one being colourfully decorated for the festival newly, everybody is sampled the sweet gift that nature gives them together.

枫糖节是加拿大传统的民间节日，每年三月春意盎然时，生产枫糖的农场被粉饰一新，披上节日的盛装，大家在一起品尝大自然送给他们的甜蜜礼品。传统的枫糖节都向来自国内外的游人开放，尤其欢迎儿童。

Maple sugar is popular Canada tradition festival section , it's a furious spring produces the maple sugar farm quilt in March every year when,The farm who produces maple sugar's is glossed over one being colourfully decorated for the festival newly, everybody is sampled the sweet gift that nature gives them together.

枫糖节是加拿大传统的民间节日，每年三月春意盎然时，生产枫糖的农场被粉饰一新，披上节日的盛装，大家在一起品尝大自然送给他们的甜蜜礼品。

Almost in the centre of it above the Prechistensky Boulevard, surrounded on all sides by stars, but distinguished from all by its nearness to the earth, its white light and long, upturned tail, shone the huge, brilliant comet of 1812; the comet which betokened, it was said, all manner of horrors and the end of the world.

一八一二年出现的这颗巨大而明亮的彗星正位于圣洁林荫道的上方，差不多悬在这片天空的正中央，它的周围密布着繁星，它与众星不同之处乃在于，它接近地面，放射出一道白光，它的长长的尾巴向上翘起来，据说，正是那颗彗星预示着一切灾难和世界末日的凶兆。

I would make it this far on the way back down.

我想使这一步的道路上后退。