查询词典 a.d.

Based on surveying the development of variable frequency power supply and analyzing its development tendency, and considering the practical features of the assignment, the conversion system is designed as follows: it selects the 3-phase Pulse Width Modulation Engine SA4828 as the PWM control signals generator; it chooses the single-chip-computer PIC16F877 as the microcontroller, which integrated the A/D modulation, which cuts down the complexity of the hardware system and strengthens the dependability of the system.

在论述和分析了变频电源及其控制技术发展的概况和趋势的基础上，结合本课题任务的实际要求，设计了一套中小功率的逆变电源。系统中PWM控制信号采用专用集成芯片SA4828生成，减轻了控制器的工作量也提高了系统的可靠性。控制器选用集成了A/D转换器的单片机，使得系统的硬件复杂性降低，提高了可靠性。

The working principle of chaotic A/D converter based on Bernoulli mapping is analyzed, and the algorithm to determine the initial value is given.

本文分析了基于贝努力映射的混沌A/D转换器的工作原理，给出了初值计算方法。

While some believe that Valentine's Day is celebrated in the middle of February to commemorate the anniversary of Valentine's death or burial -- which probably occurred around 270 A.D -- others claim that the Christian church may have decided to celebrate Valentine's feast day in the middle of February in an effort to 'christianize' celebrations of the pagan Lupercalia festival.

在一些相信情人节在纪念瓦伦廷的大概发生的死或者葬礼--周年二月的中间是著名的同时，大约270 A.D----其他的声称基督教徒教堂可以已经决定向'christianize'庆祝异教徒的牧神节节日庆祝瓦伦廷的在一努力中在二月的中间节日。

Connect down the folio pass the steady pressing the design proceeding of the unit electric circuit of the power supply to expatiate detailedly with explain, pass the large quantity electric circuit diagram to proceeded the elucidation with writing to the work principle of the unit electric circuit, combine to introduce the MC7107 A/ D transformation machine internal composing, lead the feet function and its the basic principle that proceeding convert.

接下来对开关稳压电源的单元电路的设计进行了详细的阐述和说明，通过大量电路图和文字对单元电路的工作原理进行了说明，并介绍了MC7107 A/D变换器的内部构成、引脚功能以及其进行转换的基本原理。

The hardware of the system is made up of sensors,portable A/D convertor and computer.

其硬件由传感器、便携式A/D和计算机组成，通信接口为计算机的并行打印口。

It is determined that the sun vector measurement error is about 5.74° which is caused by many factors, such as the non-ideal cosine curve between incident angle and photocurrent, the photocurrent noise, the nonlinearity of the analog circuit and the A/D converter, and the temperature inaccuracy etc.

通过分析获得太阳入射角——光电流非理想的余弦特性、光电流的噪声起伏、处理电路非线性、A/D采样非线性、温度测量不确定性等因素导致的太阳矢量实际测量误差为5.74°。

The meter immobilizes enzyme on the pole and detects the resultant weak current. After amplification, filtering, A/D conversion and the data processing based on MSP430, the measuring result is displayed on LCD.

仪器以单片机MSP430为核心，血糖和酶电极反应时所产生的微弱电流经过放大、滤波、A/D变换经单片机处理后，在液晶显示器上显示出测试结果。

Two kinds of A/D integral algorithm were proposed.

利用微处理器实现时分补偿对瓦斯的检测，提出了2种A/D转换积分算法。

Dual integral A/D converter ; convertion error ; compensating resistance

双积分A/D转换器；转换误差；补偿电阻

The key technologies include A/D conversion circuit with double integral, sign processing software for the microcomputer, eliminating zero excursion and the interference for digital filter, display precision adjusted and real-time graduation.

其关键技术包括：双积分A/D转换电路、单片机信号处理软件、消除零漂、排除干扰的数字滤波、显示准确度调校和实时标度变换等技术。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。