By dint of someeffective and feasible methods, seek for more precise optimum point of systemdesign variates. And then the infections of precise optimization to system performance andcharacteristic rules were discussed.

即借助各種精細(xì)優(yōu)化的有效途徑和方法，尋求更加精準(zhǔn)的系統(tǒng)設(shè)計(jì)變量的最優(yōu)點(diǎn)和性能最佳值成人午夜在线观看影院免费播放视频，得出精細(xì)優(yōu)化后系統(tǒng)性能及特性變化規(guī)律直接播放的毛片网站。

Through analyzing a lot of current Ontology reasoners in detail, this paper concludes a general system structure for Ontology reasoners. After introducing three typical Ontology reasoners (Pellet, Racer, FaCT++), it proposes and implements a test plan for Ontology reasoners from the system, user and developer's point. The experiment results show that the test plan is feasible and effective. At last, the paper analyzes the disadvantages of current Ontology reasoner and gives some ideas on Ontology reasoners' future development.

通過對當(dāng)前一些主流本體推理機(jī)詳細(xì)的分析研究，得出本體推理機(jī)的一般系統(tǒng)結(jié)構(gòu)91国内自拍第九页，在介紹三個典型的推理機(jī)系統(tǒng)（Pellet一级A片免费91， Racer， FaCT++）后99爱精品免费视频在线观看，從系統(tǒng)功能久久八视频，用戶和開發(fā)者三個不同角度設(shè)計(jì)并實(shí)現(xiàn)一套比較不同本體推理機(jī)的測試方案，實(shí)驗(yàn)證明測試方案是可行有效的午夜性生活网站，最后總結(jié)當(dāng)前本體推理機(jī)存在的一些問題和未來發(fā)展趨勢偷拍性爱网站。

The key to preve n tion and reduction of the drill string failure lies in prevention.For this reaso n,in view of the different stressed characteristics of the different sections of the drill string in borehole,the research is conducted by dividing the drill st ring into four failure sections,namely,the section at the wellhead and the secti ons at the upper part,vicinity and lower part of the zero stress point,to inves tigate the essence and basic reason of the failure,and to put forward scientific and feasible preventing measures,thus,being advantageous to complete and system atic prevention and forecast of the drill string failure.

防止和減少鉆具失效，關(guān)鍵在預(yù)防黑人性爱黄片，為此超碰国产人人操，根據(jù)鉆柱各部分在井內(nèi)的受力特點(diǎn)不同將其劃分為鉆柱井口處、零應(yīng)力點(diǎn)上部免费看黄色片视频、零應(yīng)力點(diǎn)附近日本精品久久、零應(yīng)力點(diǎn)下部四個鉆具失效段進(jìn)行研究，查出其失效的實(shí)質(zhì)及根本原因五月天激激婷婷大综合换脸，提出科學(xué)可行的防范措施最新国产精品久久精品，有利于全面系統(tǒng)地預(yù)防預(yù)測鉆具失效。

For the purpose that the determined controller can also give good damping under different operating points and ensure the implementation of these determined controller gains, an operating point's pattern and a feasible solution space of controller gains were constructed and established, respectively.

為在不同的工作點(diǎn)下控制器可獲得好的阻尼效果及保證該控制器增益的可實(shí)現(xiàn)性黄网站在线观看免费播放，本研究建構(gòu)工作點(diǎn)的式樣圖與控制器增益的可行解空間欧美a网址。

For the purpose that the optimal gains determined can also give good damping under different operating points and ensure the implementation for these determined parameters, an operating point's pattern and a feasible solution space of controller gain parameters were constructed and established, respectively.

為使所決定出的增益值可在不同工作條件下獲得良好阻尼效果及保證該增益被實(shí)現(xiàn)的可行性，一工作點(diǎn)的式樣圖及增益參數(shù)的可行解空間分別地被建構(gòu)與建立起來曰本三级片网站。

It is feasible to safely and reproducibly place a 3.5-mm cortical screw in the lateral mass of C1 when the appropriate starting point and trajectory of the screw are chosen.

如果選擇合適的進(jìn)釘點(diǎn)和方向a资源在线观看免费观看，在C1側(cè)塊中安全地、可重復(fù)地置入一枚3.5mm皮質(zhì)骨螺釘是可行的免费毛片视频网址。

The paper adopts the RBF neural network to fit ship lines at the first time and puts forward the method determining the RBF center point sets suitable for fitting ship lines. It shows that the method is of much higher learning speed compared with BP neural network, and is both practical and feasible based on the examination of the fitting precision by using the power function and circular function.

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