| 1. | Membrane filter elements - part 2 : pressure holder tests
膜过滤器元件.第2部分:压力保持器的试验 |
| 2. | Functional space maintainer
机能性间隙保持器 |
| 3. | The modules must be securely in place before the retainer can be replace
在安置保持器之前，要确保模块已经正确定位。 |
| 4. | There are 4 chips of ad684 on the data acquisition board . the most permissible input signals are 16 - channel simultaneously
数据采集卡上有4片采样保持器ad684 ，最多可以同时采集16通道的数据。 |
| 5. | Remove the retainer from the body bore . the check valve modules can now be removed from the valve by hand or with a screwdriver
从阀体镗孔上拆卸保持器。现在可以用手或螺丝刀从阀体上拆卸止回阀模块。 |
| 6. | For now , a controller class is a placeholder for one or more classes that would be fleshed out during design to implement the business logic of your system
现在，控制器类是设计实现系统商业逻辑填充的一个或多个类的位置保持器。 |
| 7. | Very large scale integration systems , 2004 , 12 : 235 - 244 . 7 mathew s k et al . sub - 500 - ps 64 - b alus in 0 . 18 - mum soi bulk cmos : design and scaling trends
而且在动态逻辑门中增加了一定范围的电荷保持器，使系统在最坏情况下仍能正常工作，同时可承受一定的电源电压和温度变化。 |
| 8. | This hardware can complete 120 million times float operation in one second . the rate of a / d conversion is up to 500ksps and the precision is up to 16 bits
该硬件可以实现每秒120兆次浮点运算，采用一片ltc1608进行a d转换，片内自带采样保持器、分辨率为16位、转换率为500ksps 。 |
| 9. | Abstract : this paper introduces a new power factor meter with sample hod circuit and divider and provides basic measurment circuit . experiment result proves the practicality of the power factor meter
文摘:本文介绍了利用采样保持器和除法器实现的功率因数测量仪表，给出了测量电路原理图，实验结果表明了该测量仪表的实用性。 |
| 10. | The basic operation principle of phase - locked frequency synthesizer and the type of circuits are expatiated systematicly in this paper . the principle of operation on sampling phase detector and some characteristics including the linear tracking and phase noise in phase loop circuits are analyzed deeply . the research is emphased on the theory and design method of circuits in the sampling phase - locked frequency synthesizer . then , the expansion capturing circuit is analyzed and designed for better performance of capturing loop circuits . at last , the loop filter is also analyzed and contrived taking account of effection of additional phase shift by the sampling - holder . the general research on the theory and technology of sampling phase lock in the paper will make a basement for the development of new product
本文系统的阐述了锁相频率合成器的基本工作原理及电路类型；较深入地分析了取样鉴相工作原理及电路、锁相环路的线性跟踪特性和相位噪声特性；重点对取样锁相频率合成器电路理论和设计方法进行了研究；为了改善环路的捕获性能，对扩捕电路进行了分析和设计，并用wewb32软件对电路进行了仿真；考虑到取样保持器的附加相移影响，对环路滤波器进行了分析和设计。 |
