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Hydroxysteroid dehydrogenase/carbonyl reductase ( 3α-HSD/CR,EC 1.1.1.50 ) from Comamonas testosteroni is an inducible enzyme which catalyzes the oxidation of androsterone with NAD+ to form androstanedione and NADH. 3α-HSD/CR was a member of the SDRs family, whose crystal structure had been solved by X-ray diffraction in 2000. The structure of 3α-HSD/CR is a homodimer which shows a typical pattern of Rossmann-fold structure consisting of βαβ units, and reaveals similarity with other members upon the SDRs family.

中文摘要 3α-Hydroxysteroid dehydrogenase/carbonyl reductase ( 3α-HSD/CR，EC 1.1.1.50 )是从Comamonas testosteroni菌体中分离而来的诱发性酵素，利用NAD+为辅因子，将受质androsterone氧化成androstanedione并伴随NADH的生成而完成催化反应。3α-HSD/CR是属於SDRs家族成员之一，其立体结构已经在2000年利用X-ray晶体绕射所解出。3α-HSD/CR在结构上为一同源双聚体，并和其它家族成员一样具有βαβ二级结构所叠合组成的Rossmann-fold特徵。

A multicenter study by Angiology Care Units in North-Eastern Italy.

意大利东北部脉管学护病房的多中心研究。

Your mission is to annihilate the GREEN ZOMBIE UNITS.

你的任务是歼灭绿色僵尸单位。

They can't make good use of air units to fight off the Scorpions, but they also have the Reaper Tripod, which is more powerful than the regular Annihilator Tripod.

它们不能有效的运用空军单位来对付蝎子，不过它们拥有收割者三脚，这比普通的三脚要厉害的多。

Existing products more than 500 species, more than 400 million units annually.

现有产品500余种，年产量400多万套。

Flexible - The modular construction of the SIL725 Safety Annunciator allows units to be assembled in almost any size and shape to suit the customers' requirements.

灵活性– SIL725安全传感器的模块结构允许各模块组装成任意的型号和外形，以满足消费者的要求。

By analysis the evolution of ancient administrative regionization in china, This article tries to reveal the basic characteristic of central government's controlling of the local government through different methods such as anomalistic division of the territory, specified administrative levels of Regionalization Units and official systems compatible to the centralization of state's power system.

本文通过回顾我国行政区域划分的历史沿革，揭示出在我国单一制国家内部中央通过"犬牙交错"的行政区划方式和特定的行政区划层级以及与集权制度相对应的官制设置来实现对地方进行有效统治的基本特点。

Under the special transitional pattern, that is the separation of politics and economy, the economy as the forerunner, incremental reform, and experimental units as antecedence, resolute goal and "blurred" advancement, the transition of the social insurance system inevitably depends on the "historical" road and on the "realistic" road.

在回答这四个问题以前，本论文对国内、国际时代背景和文献背景情况做了全面、清晰的概括，它既是本文选题的依据，也是回答前面四个问题的前提和基础。

Therefore Internet news service can"t meet today"s demands of social development. Though there are some achievements to carry on research at present, the service has not met readers" real demand.The research of news " anthropomorphize at home is at the stage of exploration . Though some units have carried on some research and made some achievements, various kinds of defects exist in these achievements on the whole.

目前的网络新闻服务站点基本上是基于B/S结构的单一的新闻发布系统，而HTML页面技术和HTTP无状态连接协议，没法提供跨媒体的多样化内容的服务，不适于用户按照自己的习惯进行阅读和订购，因而使得Internet新闻服务尚没有摆脱传统的推送服务方式，这已经越来越不满足现在社会发展的需求。

I want you to cannibalize your anti-aircraft units and turn them into riflemen.

我要你调集防空部队，并转为步兵。

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。