查询词典 waveform table

In chapter 4, control strategy for standard vibrators test table waveform is studied.

第四章阐述了标准振动台台面波形控制策略。

In chapter 3, the mechanism of test table waveform distortion generated by factors of ultra-low-frequency standard vibrator is studies systematically.

第三章对超低频标准振动台的台面波形失真机理进行了系统全面的分析。

In chapter 3, the mechanism of test table waveform distortion generated by all factors in ultra-low frequency standard vibrator is studied systematically for the first time. First, the expression of suspension spring is obtained according to the experimental results.

首先阐述了振动传感器的特点及其校准方法，指出了建立超低频标准振动计量的迫切性和重要性；然后回顾了国内外标准振动计量技术的研究概况；接着指出了超低频标准振动计量存在的问题并指明了研究方向，另外，还对标准振动计量中的自动控制研究情况进行了回顾和评述；最后指出本论文研究的主要内容。

Altera Corporation system to the Cyclone FPGA series of digital platform, microprocessor, bus, Digital Frequency Synthesizer, memory and I / O interface hardware concentrated in an FPGA, the use of direct digital frequency synthesis technology and digital modulation waveforms required to achieve the rise, Using FPGA ROM storage of the DDS waveform table, and make full use of on-chip resources, improve the system's accuracy, stability and robustness.

系统以 ALTERA公司的 Cyclone 系列 FPGA 为数字平台，将微处理器、总线、数字频率合成器、存储器和 I/O 接口等硬件设备集中在一片 FPGA 上，利用直接数字频率合成技术、数字调制技术实现所要求波形的产生，用 FPGA 中的 ROM 储存 DDS 所需的波形表，充分利用片上资源，提高了系统的精确度、稳定性和抗干扰性能。

Obtains after the number/mold transformation as well as the filter needs the signal the profile, his table look-up synthetic waveform method may have the random profile request satisfiedly.

经数/模转换以及滤波后得到所需信号的波形，他的查表合成波形的方法可以满足产生任意波形的要求。

Then the creative research work on ultra-low frequency and large amplitude elcectromagnetic vibrator based on moving magnet is done, improving exciting signal at ultra-low frequency, and, the theoretic analysis and experiment model are studied. Thus, the reference for establishing ultra-low frequency standard vibrator in future is provided. In chapter 5, two control strategies for ultra-low frequency standard vibrator test table waveform are studied.

首先采用机械振动隔振理论，研究设计了机械低通滤波器来滤除噪声信号，并运用等效的小振级信号进行了实验研究，得出了有益的结论；然后为提高超低频时激振信号，作者创造性地提出了动铁型大位移的电动振动台结构，进行了理论分析和实验模型研究，为将来建立大位移的超低频标准振动台提供了参考。

A direct digital synthesis technology, based on large capacity synchronous dynamic random access memory, was used, in which the table of arbitrary waveform amplitude generated by CPU according to testing requirement was stored, and FPGA outputs the amplitudes to D/A converter.

采用基于大容量同步动态随机存储器任意波形表的直接数字合成技术，由CPU根据检测需求生成任意波形幅值表，存储到SDRAM中，现场可编程门阵列器件将波形数据输出到D/A转换器，经滤波、放大后驱动涡流探头。

From the view of the number of composition series and table subset of order or elementary abelian table algebra is depicted by making use of fundamental theorem on homomorphism of table algebra.

分别从合成列及表基的p阶、阶表子集的数目角度刻画了初等abelian表代数。

First, a method for calculating semantic likelihood between two phrase is carried out. then use the likelihood to determine the title row or column of the table, the correlation between titles and fields is determined at the same time. base title of the table, a simply method is presented which can be used to calculate correlativity between this table and what we wanted to extract.

首先提出了一种短语语义相似度的度量方法，然后利用短语语义的相似度确定表格标题行，并对表格行与抽取字段的对应关系进行计算，最后计算表格的整体语义，度量该表格与所要抽取的内容有多大相关度。

Upon acceptance of payment, refers checks and payment to the cashier for closing. Returns the copy of the closed check, credit card slip or change to the guests, as appropriate;?Sets up tables for each course according to the outlet standards. During the meal, after each course, removes dirty dishes and silverware from table and changes ashtray upon needs. After the meal, cleans and resets the table;?During lower occupancy of the outlet, assists with stocking the workstations, polishing silverware from table and folding napkins;?Keeps abreast of the food and beverage promotions, new menu items, daily specials, and other relevant information for the outlet guests

在客人用餐完毕离开后，清理餐台并重新摆台；在餐厅入座率不高时，需协助整理工作台和擦拭餐台上刀叉等餐具并准备口布花；及时获取餐饮推广活动，新菜单，每日特别推荐的相关信息；职位要求：女性年龄18-23岁之间职高以上学历；2年以上五星级国际酒店餐厅服务员工作经验；具备基本的餐饮知识，了解食物配料，烹调方式以及基本服务技巧；具备良好的客户服务导向意识；具备良好的沟通以及人际交往技巧可根据工作需要，灵活安排不同的工作班次；Responsibility

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。