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The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure data from the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two values to DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

本发明公开了一种高纯精馏的动态矩阵控制系统和方法；系统包括：精馏塔、智能检测仪表、DCS系统、上位机和现场总线；所述精馏塔、智能检测仪表、DCS系统和上位机通过现场总线依次相连，实现信息流的上传和下达；本发明所涉及的控制系统采用塔双端产品组分为被控变量，回流比和再沸比为对应的控制变量；上位机从DCS实时数据库中获得历史的温度、压力等数据，通过推断控制环节和动态矩阵控制器环节，得到当前控制器的输出值-回流比和再沸比，再把控制器输出值返回给DCS系统，实现了对高纯精馏过程的双端产品高纯控制，对双端组分的高纯度平稳操作，具有很好的动态品质和控制效果。

Also,this paper proves the correctness of the algorithm and uses it to reduce the information system.In subsequent experiment,this paper applies the optimal reduct in classification problem and receives good effect.

通过对相关工作进行比较分析，详细设计并证明了求取该最优约简的算法，并将最优约简运用于分类问题，得到了良好的效果。

For queueing and must reinject all packets it receives, no matter what.

据我所知，已经有大虾将相应的宏和函数给了说明。

A through bore in the plastic carrier member receives the sealing element, which is formed with an annular groove in which the carrier member is removably secured.

在该弹性支承件内的一通孔可容纳密封件，该密封件形成有一环形槽供支承件可拆地固定。

To the clinical medicine, it is a great development that the acute myocar- dial infarct patients have been cured by coronary artery repatency, thromboclasis, precutaneous transluminal coronary angioplasty and other heart surgery in the last years. The myocardial tissue receives blood reperfusion again due to cardiovascular repatency or reconstructive operation, which can really obtain favorable therapeutic efficacy in multitudinous conditions.

急性心肌梗死病人采用冠脉再通术、溶栓治疗以及其他心脏外科手术是近年来临床医学的一大重要进展，因为缺血后疏通血管或再造血管使心肌组织得到血液的再灌注，在多数情况下确能收到良好的治疗效果。

This year, a Chinese female foreign student receives a Japanese man's harassment in Tokyo, by stern words reprimanding.

小静妹妹，我来帮你吧……今年，中国女留学生在接到日本男子的骚扰在东京的严词斥责。

In which the micro-controller using external interrupt serially receives uploaded data by the mouse.

该例中单片机利用外部中断串行的接收鼠标上传的数据。

Two elongated guide members each have a rectangular slot which slidingly receives the edge of the slide plate.

两种细长的引导会员都有一个矩形槽，slidingly接收板的边缘。

"The effects of obesity on heart health receives a lot of attention, but less scrutiny has been given to the impact on the endothelium of modest weight gain in otherwise healthy people," says Virend Somers, M.D., Ph.D., Mayo Clinic cardiologist and senior author.

&的影响，肥胖对心脏健康得到了众多的目光，但较少的审议工作已考虑到了影响，对血管内皮的温和体重增加，否则健康的人，说：& virend Somers的博士， Mayo Clinic的心脏科资深作者。

Because it is so close to the ocean, the Sonoran Desert receives more rain than any other desert, about 10 to 14 inches (25 to 35 cm) a year.

因为它是这么接近海洋，索诺兰沙漠接受更多的雨水比任何其它沙漠，一年约有10～14英寸（25～35厘米）。

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。