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In field oriented vector control of permanet magnet linear synchronous motor,the knowledge of θ,the angle between the d-q reference frame,and the frame of motor winding,is fundamental.

0引言永磁同步直线电机直接驱动系统具有推力大、效率高、结构简单、定位精度高和反应速度快等特点，在自动化仪表、计算机辅助设备、自动化机床、工业机器人等场合都获得广泛应用。

Mobile racks, USB frame, MP3/MP4 display rack, VCD display rack, digital camera frames, laptop display rack, battery boxes, computer chassis, speaker. 3, alcoholic drinks and tobacco racks, tobacco boxes, wine card, Triangle Units cards, data frame, penholder, business cards, Block, Block organic stationery, calendar and so on. 4, cosmetic rack, jewelry box, organic glass, crystal trophy and so on. 5, stainless steel cutting, stainless steel rack and so on

手机架、优盘架、MP3/MP4展架、VCD展架、数码相机架、笔记本电脑展架、电池箱、电脑机箱、音箱。3、烟酒架、烟酒盒、酒水牌、三角台卡、资料架、笔架、名片座、有机文具座、台历等等。4、化妆品架、珠宝盒、有机玻璃罩、水晶奖杯等等。5、不锈钢切割、不锈钢架等等

With drill hole information and section charts as fundamental data, the author designed the corresponding 3D topological data structure, presented a general process of 3D geological modeling based on sections, constructed the wire frame facial model and corresponding block model of the geological body, finally realized "wire frame-block model" facial-volumetric-mixed modeling.

本文以钻孔信息和剖面图为基础数据，设计了相应的三维拓扑数据结构，提出了基于剖面的三维地质建模流程，建立了地质体的线框面模型及其相应的地质块段体模型，最终实现了"线框-地质块段模型"(Wire Frame-Block Model)面体混合构模。

A total of five different structural configurations representing different stiffness ratios between the wood-frame structure and concrete frame were tested.

本文重点介绍了首次进行的3层轻木-混凝土混合结构振动台试验，试验房犀下部一层为钢筋混凝土框架结构，上部二层为对称轻型木结构，模型平面尺寸为

This paper researched the key part of framework aclinic slide structure on diamond frame sawing machine, which is the axially moving hydrostatic journal bearing. The major sawing motion form of diamond frame sawing was analysed. The structure designing model of the bearing according to the practice was established; and by the systemic analysis and research on the lubricating mechanism and performance, the designed scheme was proved out.

本文通过对金刚石框架锯主要锯切运动形式分析，以金刚石框架锯锯框水平滑动机构关键件－轴向运动液体静压轴承为研究对象，结合实际建立了该轴承的结构设计模型，通过润滑机理与性能的系统分析研究，实现了对设计方案的有效验证，并满足实用要求。

The retainer frame is placed,test face down,onto aflat surface and the lengths of core positioned in the frame such that they are touching and parallel.

放置保护框架，这面朝下放置在平坦的表面，这样缆芯正好可以放置在保护框架内并且和框架接触并平行。

The result shows that the aseismatic of polymer RC Frame is better than the ordinarily RC Frame.

由计算结果得：部分采用聚合物混凝土的框架抗震性能大大优于普通混凝土框架。

However, in designing the beamless slabs with equivalent frame method, the stress is an average values along the depth of section, which varies with the normal service state. Compared with the results by finite element method, the results gained by equivalent frame method cannot satisfy the requirement under the normal service state. Therefore, the tendons of beamless slabs should be designed and arranged based on the results of FEM taking account into vertical load and prestressed load.

本文通过分析，认为采用等代框架法进行无梁板设计时，其内力是基于截面平均的结果，在正常使用状态与实际受力状态有很大的不同，通过对比等代框架法和有限元计算的正常使用极限状态应力可知，按等代框架法设计的预应力布置并不能保证其正常使用极限状态的要求，据此提出了应根据无梁板在竖向荷载和预应力共同作用下弹性有限元分析结果进行预应力筋布置的建议。

If a centrically braced steel frame is used, structure"s stiffness can be met easily. However, when the braces buckle under severe earthquake and are out of function, the frame collapses quickly because it can"t support these loads, thus its energy-dissipation capacity and ductility is poor.

如果采用中心支撑钢框架体系，结构的刚度要求很容易满足，但是当支撑在罕遇地震下失稳而退出工作后，结构整体因不能继续承载而很快倒塌，结构的延性和耗能能力就比较差。

Using principia of stiffness equivalent, it could be transformed to the bracing system so that the soft ware can calculate. Then calculate the member individually, including the calculation of load-behavior capacity, the calculation of high strong bolt with the method of connection with beam, the design method of stiffening rib, etc. The text educed the above-mentioned formula theoretically.5. Linking with windmill flat engineering example in the third youth flat engineering of Yi Zhuang Development Area, Beijing, It and steel frame constitute the steel frame? steel shear wall with slit system respectively are analyzed the whole structure by ANSYS and SATWE. The result is consilient.

既利用刚度等效的原则，把其转换为工程计算软件可以计算的支撑体系，然后对构件进行单独计算，包括承载力的计算、和梁接合方法——高强螺栓的计算、加强肋的设计方法等内容； 5、带缝钢板剪力墙与钢框架形成钢框架——带缝钢板剪力墙结构体系，结合北京亦庄经济开发区青年公寓三期工程中的风车公寓工程实例，分别采用ANSYS和SATWE进行了结构整体分析，两者的计算结果相吻合。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。