收发

Then multimedia messaging service is studied in detail include systerm, architecture, protocol, channel and the process of its send and receive.

对MMS多媒体短信息业务进行具体的研究。包括MMS的系统组成、体系结构、协议分层、使用信道和收发过程等。

Digital transceiver is one of the key factors in satellite communication system.

在卫星通信系统中，数字收发信机是影响卫星通信质量的关键因素之一，而射频收发模块是这一关键因素的重要组成部分。

Through the udp protocol connectivity and communications.

通过udp协议实现连接和通信。能收发信息。

To deal with the problem of data consistency in the process of designing, time management strategies of federates in every platforms were proposed, and the procedures of system time advancing were given.

为确保协同设计过程中联邦成员收发数据的一致性，提出了各平台中联邦成员的时间管理策略，给出了系统整体时间推进的方法和过程。

E-mail is one of the most popular communication services around us, but there are some overstaffed problems associated with the MUA of traditional E-mail system. These problems make the E-mail client side cumbrous and difficult to expand on mobile terminals such as cell phone, and PDA etc.

随着人们在网络上的活动日益增加，电子邮件服务在人们的日常生活中越来越重要，大量的敏感信息要在网络上传播，人们对电子邮件服务的便利和安全的要求越来越高，与此同时智能化程度越来越高的移动终端设备如手机、PDA、PocketPC等也逐渐融入人们的生活，人们对移动设备上的邮件服务需求在也慢慢呈现出来，因此如何让邮件用户在各种固定或移动环境下收发邮件具有一定意义。

Though there are a lot of software for sending and receiving letters such as FoxMail which are also multifunctional,it is difficult and complicated to the Most of people who are curbstone.

虽然，现在已经有很多的邮件收发软件例如著名的FoxMail 但是对于大多数的非专业的人来说它还是有点难度稍嫌负责。

To track materials delivery status and cycle counting to provide timely, accurate and current information and report

跟踪物料收发情况和作业循环，及时、准确提供即时信息汇报

It emphasized on the transmission principle of the information in the communication net, and emphasized on the realization method how to modulate and demodulate in the line transceiver.

文中着重分析了通信网中信息传输的基本原理，线路收发器中信息的调制与解调的过程和实现方法。

This function is realized by the circuits called demultiplexer, one of the most important parts either.

实现分接功能的电路叫做分接器，是光纤收发机电路的重要组成部分。

This paper brought forward some new design schemes based on the principle and signal processing algorithm of velocity detector, and introduced the hardware construction of the velocity detector based on Depolarizer and S3C2410A microprocessor. The high-efficient ARM program of radical 4-FFT was designed according to the architecture characters of ARM core. In the process of code designing, the instruction scheduling and register allocation were controlled subtly, and the fixed-point number's storage format and computing method of float number were provided. Barrel shifter and 5-lever pipeline were fully utilized and the pipeline interlock was avoided.

针对多普勒测速仪的基本原理和信号处理算法提出了新的设计方案，介绍了由多普勒收发前端和三星S3C2410A处理器构成的测速仪的硬件结构；并结合ARM内核设计特点实现了基4时间抽取快速傅里叶变换算法，针对大多数ARM处理器硬件上不支持浮点运算，提出了把浮点数以定点数格式存储和计算的方法，充分利用桶型移位器和5级流水线，避免了流水线互锁问题。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。