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This thesis discusses mainly the hardware design and development of a simulator for airborn phase array radar. The long period of the simulator is implemented by SDRAM MODULES used in Personal Computer, the broadband is implemented by D/A with internal double-data-channel switching architecture, and the control is implemented by a single CPLD.

本文主要探讨了一种机载相控阵雷达回波模拟器的硬件设计和工程实现，采用了PC机内存常用的超大容量高速缓存SDRAM MODULES来实现输出信号的长周期，采用内部具有双路数据分时切换结构的D/A实现输出信号的宽带，采用一片CPLD完成整个系统的时序逻辑控制。

It obtains that the transport operator A has no complex eigenvalue s,and the spectrum of the transport operator A consists of finite real isolated eigenvalues which have a finite algebraic multiplicity in trip Pas.

本文研究了板几何中一类具各向异性、连续能量、均匀介质的迁移算子的谱，得出了该算子A在带域Pas中无复本征值和由有限个具有限代数重数的实离散本征值组成等结果。

He's not only a three-letter man,he's also a straight A student,you know,one of those All-American types.

他不仅仅代表三个球队，他的学业成绩也都全都是A，你知道，他就是那种人人都想成为的美国理想人物。

Congress failed to act on this proposal. But its lack of action did not stop the rise of a labor organization that had been formed a few years earlier. The group soon would become the most important labor union in the United States. It was the American Federation of Labor, or A.F.L.

国会未能就总统的这项建议有所作为，但国会的不作为并不能阻止几年前成立的一个劳工组织的兴起，这个劳工组织很快就成为美国最重要的工会组织，这个工会组织就是美国劳工联合会（the American Federation of Labor，简称A.F.L），美国劳工联合会由塞缪尔。

Application indicates that the digital A/R monitor can completely replace the analog A/R monitor.

从应用情况可以看出新型数字A/R显示器完全可以取代模拟A/R显示器。

So digitalizing analog signal is the trend of information technology, in which A/D and D/A plays an important role.

所以模拟信号数字化是信息技术的发展趋势，而A／D和D／A转换器在其中扮演着重要角色。

It is concluded that Compound A, the C. yunnanense extract, has notable anthelmintic effect and less toxin side effect and is expected to being developed into a new anti-A scans suum drug in the future.

云南贯众提取物化合物A对猪蛔虫病有较好的驱虫效果，且毒副作用小，有望开发成为一种新的驱蛔虫药。

A powerful anti-ageing antioxidant, Beta Carotene is used by the body as a safe and natural source of vitamin A.

强大的抗衰老的抗氧化剂，β-胡萝卜素是用身体作为一种安全，自然来源维生素A

This theory - for it was not, and is not necessarily, anything more than a purely theoretical doctrine, and many professors of Antinomianism, as a matter of fact, led, and lead, lives quite as moral as those of their opponents - was not only a more or less natural outgrowth from the distinctively Protestant principle of justification by faith, but probably also the result of an erroneous view taken with regard to the relation between the Jewish and Christian dispensations and the Scriptures of the Old and New Testaments.

这一理论-这是不是，是不一定，什么都多于一个纯粹的理论学说，和许多教授a ntinomianism，作为一个问题，事实上，领导和带头作用，生活相当道德的那些他们的对手-是不是只有更多或更少的自然产物，从鲜明的新教原则的理由，信仰，但也可能造成一种错误的看法方面所采取的之间的关系，犹太教和基督教dispensations和圣经的新旧约。

The duplex DNA of which any strand contains only one among A, T, G or C has a preference for selecting ODN containing at least a couple of pyrimidines to form antiparallel TBT.

双链DNA中任何一条链只包含A、T、C或G中的一个，这样的DNA偏爱选择含有至少两个嘧啶的ODN形成反平行的TBT。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。