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Through hydraulic calculation, determines and tests mean friction resistance of riser and horizontal branch circuit of new two-pipe heating system, provides reference for its hydraulic design calculation.

本文分析了新双管系统与传统双管系统的不同，提出了确定新双管系统平均比摩阻联值的方法，并通过水力计算，确定并验证了新双管系统中立管与水平支路的平均比摩阻的取值，为新双管系统水力设计计算提供参考。

The basic equations of two-fluid model are established. The physical characteristic parameters of liquid and gas phase are necessary for theoretical calculation and so the calculation methods are listed.

液相的物性参数是理论计算所必需的，本文根据油水两相实验的数据导出了计算油水混合物流动的表观粘度计算式，同时给出了液相和气相其它的物性参数的计算方法。

Finally, based on the theory of Timoshenko beam, a beam model of this crankshaft is built, which is compared with solid model. The results indicate that this beam model can meet the needs of calculation precision and calculation efficiency. With this beam model, the condition in which real loads are put on the crankshaft is simulated. The displacement curves、velocity curves、acceleration curves of the main journals and the pulley of this crankshaft and torsion vibration curve of the pulley are then gained. With these curves, the dynamic characteristic of the crankshaft is analyzed. The conclusion indicates that this crankshaft has good dynamic characteristic.

最后利用Timoshenko梁理论建立了曲轴的梁单元模型，将此梁单元模型与体单元模型进行了比较，结果表明梁单元模型能够满足精确度和计算效率的要求；利用该梁单元模型，模拟了实际条件下的载荷作用时曲轴的响应，得到了曲轴各主轴颈和皮带轮端的位移、速度、加速度曲线以及皮带轮端的扭转振动曲线，分析了曲轴的动态特性，结论表明该型曲轴具有良好的动态特性。

Based on the design and calculation methods for common tight joint bolt, which is subjected to the changing load, a design and calculation methods for flexible bolt is given.

在普通承受交变载荷紧螺栓连接设计计算方法的基础上，给出了采用柔性螺栓的设计计算方法和公式，并以某型柴油机气缸盖螺栓为例，进行了改用柔性缸盖螺栓的设计计算。

Re-calculation of the Gulf region over the next 30 years the probability of earthquake risk; access to the prehistoric earthquake in the time and strength, strike-slip fault with the city's fault slip rate of new information; development of the Gulf region, the new three-dimensional structure of the crust and sedimentary rock velocity model ; Calculation in the Gulf region's history, location and intensity of the earthquake, regional seismicity rate changes over time, little is known about the fault is, unknown thrust fault and the fault rate of seismic activity; development of the Quaternary sedimentary rocks in the area of new digital map .

重新计算海湾地区未来30年地震危险概率；获取史前大地震的时间和强度、城市内走滑断层的断层滑动速率的新的信息；发展海湾地区新的地壳三维结构和岩石沉积岩速度模型；计算海湾地区历史地震的位置和强度、区域地震活动性速率随时间的变化、了解甚少的正断层、逆断层及未知断层的地震活动速率；发展该地区第四纪沉积岩的新的数字地图。

Based on the three-span calculation model and considering the influence of top tower deviation, the new calculation formulas for cable bent are suggested by making use of mechanical and geometrical relationships.

基于三跨计算模型，考虑主塔塔顶偏位的影响，利用力学关系和几何关系得到了新的主缆垂度计算公式。

A new thinking of CAD schematic application in checking the tower top windage yaw is studied, which overcomes the traditional calculation shortcomings, such as: difficulty to calculate the space distance, and the low accuracy of the diagram way, and taking some poles of Fengci Ⅱ line as an example. On the basis of the suspension insulator wobble angle calculation, checking the windage yaw of the wine cup type tower and ZV1 stayed pole by the AutoCAD method, the feasibility of composite insulation instead of common glass insulation is analyzed.

本文研究运用CAD图解法进行塔头间隙风偏校核的新思路，克服了传统解析法计算空间距离困难和图解法精度不高的缺点，并以500 kV凤磁Ⅱ回线路部分杆塔为实例，在计算悬垂串绝缘子摇摆角的基础上，利用三维制图软件AutoCAD对酒杯塔和ZV1型拉线塔进行风偏校核，分析了采用合成绝缘子取代普通玻璃绝缘子的可行性。

The thermodynamic calculation theory of water-cooled surface air cooler s includes thermodynamic calculation methods of fully wetted, partially dry, and completely dry cooling conditions, method of judging work conditions, definitions of relative terms and thermodynamic testing method.

水冷式表冷器热力计算理论包括干、湿、半干半湿工况的热力计算方法、工况判别方法、相关术语的定义及热工实验方法。

The structure,design and calculation of the machine,especially the calculation about main girder,rated power,resistance of drain sludge and so on,which is key technology about the design of a suction machine are described.

文章论述了该机的结构设计及计算，尤其较详细地叙述了吸泥机设计中的关键问题：主梁的刚度、驱动功率、排泥阻力等的计算过程，为类似设备的研制提供了有益的经验。

Based on the above-mentioned characters, this paper analyzes and improves the building method of non-restraint triangulated irregular network and the embedded approach of constraint conditions, provides a kind of computational method which is used to compute the strip mine earthwork calculation based on constrained triangulated irregular network. a experiment system, which auto-complete the update of the strip mine relief map and earthwork calculation with the discrete elevation point, is developed by using the VBA development tool of AutoCAD.

基于上述特点，本文主要分析并改进了无约束三角网建立的方法与约束条件的嵌入方法，研究了基于带约束条件的不规则三角网的露天矿采剥土方量的计算方法，并利用了AutoCAD内嵌的VBA开发工具，实现了一个以离散的高程点为数据，自动完成露天矿地形图更新绘制与土方量计算的实验系统。

Summary In copyright infringement cases,if the alleged infringer uses or even plagiarizes the copyrighted works or parts thereof,which causes no substantially adverse effect on the normal exploitation of the work,nor does it inflict any substantial damages to the right owner,the de minis doctrine should be applied to exempt the liabilities of the defendant and seek the balance of interests between the right owner and the general public embodied by the copyright law.

在侵犯著作权案件中，如果被控侵权行为人虽未经著作权人的同意，使用甚至抄袭了受著作权保护的作品或作品的片段，但若情节轻微，未对该作品的正常使用产生任何实质不利的影响，亦未对权利人的权利造成实质性的损害，则应适用&不计琐细原则&，免除行为人的责任，以寻求在权利人利益与著作权法所体现的社会公共利益之间的平衡。

This new product will become our best seller.

这个新产品会成为我们最畅销的产品。