The three-phased half-controlled bridge commutation and stabilizing voltage adjuster of permanent-magnet generator , which is also a rectifier, wastes a little electricity power and outputs high efficiency , makes it generate stable direct circuit, solves vehicle's problem of generating stable voltage at variable speed and variable load.

永磁發(fā)電機三相半控橋式整流穩(wěn)壓器集穩(wěn)壓蜜桃视频午夜播放网站免费观看大全、整流于一體女人一级毛多A片，電能消耗少狼友视频观看，發(fā)電效率高黄色网站秒播视频，輸出直流電壓穩(wěn)定亚洲欧美另类精品一区，解決了汽車用永磁發(fā)電機在變轉(zhuǎn)速人人插人人操大肉穴免费毛片、變負載工況下輸出電壓保持穩(wěn)定的問題。

In the thesis, efficiency calculation of the power plant feed pump driving steam turbine in the unit operation is mainly analyzed, concerning the variant working condition economical analysis of this turbine.

論文圍繞電站給水泵汽輪機變工況經(jīng)濟性分析這一課題黄视频毛片，著重分析該汽輪機在機組運行中效率計算的問題久久三级你懂视频。

Zeng had developed a careful system of interviews and rankings to help him choose these staff members: true to his principles, he tried to gauge their honesty, efficiency, and intellectual prowess before hiring them; he always rejected those who were opium addicts, boastful, shifty-eyed, or coarse in speech and manner.

曾國藩自有一套嚴謹周全的甄選良才的面試、考課方法：他在聘雇之前會一一考評他們的誠實91se.av、效率與學(xué)識等久久久久综合欧美；鴉片煙癮者或巧言令色、工於心機影音先锋最新网址、言辭舉止粗鄙者超碰操乱伦，概不錄用。

In order to provide scientific basis and methods for study of walnut seedlings rapid propagation,survival ratio,scion's growth and efficiency of grafting were investigated and determined,efficiency of the new grafting method of walnut that it is single bud green branch grafting compared with efficiency of traditional grafting methods bud grafting and shield budding.

為給核桃優(yōu)質(zhì)苗木的快速繁育研究提供科學(xué)的依據(jù)和方法99操的在线视频，就核桃嫁接的成活率又大又长又深又粗的操逼视频、接穗的高生長、接穗的粗生長和嫁接的工作效率進行了調(diào)查和觀測国产一级视频69欧美一级，比較分析了核桃嫁接新方法——單芽綠枝接與傳統(tǒng)嫁接方法——&工&形芽接和嵌芽接的嫁接效果欧美视频射。

The results showed that scion's coarseness of single bud green branch grafting was weak comparatively, but its grafting efficiency was remarkably higher than efficiency of bud grafting and shield budding.

結(jié)果表明：單芽綠枝接僅在接穗的粗生長上略遜于傳統(tǒng)的&工&形芽接和嵌芽接，但其工作效率卻遠高于傳統(tǒng)嫁接法妓女网妓女网站。

By use of this method, the performance of pump such as head, shaft power and efficiency are predicted, based on the calculation of fourteen different operating conditions in the flow range from 0 to 1.35Q.

在0~1.35Q范圍內(nèi)對14個不同工況點的揚程啪啪啪免费视频网站、軸功率和效率等性能參數(shù)進行了預(yù)測，并根據(jù)計算結(jié)果繪制了性能曲線。

The performance parameters of pump system such as head, shaft power and efficiency were predicted based on the calculation of different operating conditions with the flow rate range from 20 L/s to 35 L/s at the same rotating speed.

對同一轉(zhuǎn)速下流量為20~35 L/s范圍內(nèi)的7個工況點的揚程在线观看色污网站、軸功率和效率等性能參數(shù)進行了預(yù)測欧美视屏在线视频，分析了泵裝置內(nèi)部速度場的分布。

The twin vortex at the tip clearance of hub side and the asymmetric recirculation at wall of inlet duct are also observed. 4 The mass-weighted average of flow parameter at inlet and outlet of every passage of impeller changes with different positions. In addition to the above, with the unsteady method, the head rise, shaft power and efficiency have been predicted well.

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Under spraying humidification state, the parameters of JYPW-1 spraying axial fans for textile enterprises such as flow, total pressure, efficiency, shaft power and acoustic power level changing with water-air ratio were tested, and the performance parameter curve changing with water-air ratio was obtained. The approximate formula of its pneumatic performance in different water-air ratio condition were deduced which can be referenced for of selection and project application.

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Main points of the thesis are as follows:(1) The main function models and information relations between these models in the CAPP system in the integrated CAD/CAM project are explained, a new process plan design method is mentioned based on analyses of process plan design. This method is based on the process plan prototype, and develops the prototype little by little until the perfect process plan is completed, the prospect of this method is discussed;(2) The feature abstracting rules and methods are studied, a feature coding system is developed based on GT, all the defined feature models are described by the mathematical methods;(3) The integrated method of CAD/CAPP based on features is mentioned, this method defines a feature exchanging model, and develops an interface software to exchange design data into technology data base, this technology data base includes the design and technology information of the parts;(4) The process plan reasoning method based on features is created, this method uses Mycin algorithm to solve the reasoning of the feature process plan. A process plan making system is developed. In this system part process plan is made by the semi-intelligent method, this method uses the feature reasoning, feature process chain searching and man-computer talking together;(5) The main structure of the HOPE system is introduced, a shaft drawing and its process plan made by this system are shown, the data process problem in process drawing making is also discussed;(6) A new method of describing process rule is introduced, this method uses IfThen rules and neural nets weight values together to describe process rules, the BP algorithm is adopted in this method;(7) The optimal machining sequence problem of the process steps on the same fixturing is discussed, optimal algorithms SA is applied to solve this problem, the result shows that this method is more efficient than the traditional method;(8) All jobs in the thesis are summarized. In order to carry out the research in the future, some rational proposals are given.

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