等轴

Based on Netherlands ship model Basin's open-water tests,CPP's thrust coefficients and torque coefficients in four-quadrant under different pitch ratio of screw and different types of CPP were obtained by using the method of Akima interpolation,and CPP's thrusts and torques were obtained as well.

为在船舶操纵模拟器中进行CPP船舶的操纵运动仿真，须建立其操纵运动数学模型，该模型的精度直接影响船舶操纵模拟器的逼真度。1991年，Takeda等[1]研究了CPP船舶减速时的操纵性能。1996年，Robert[2]研究了CPP船舶在不同CPP螺距和轴转速组合下的推进效率，并设计了一个鲁棒多参数推进控制系统。

According to the technics,Cu hohlraum with thickness of 10～25 μm was obtained and there were not flaw and indentations on the surface.

通过该工艺制备出的镀层厚度达到10～25 μm，均匀性达到95%，表面无砂眼、裂纹等缺陷，刻蚀芯轴后空腔能自持。

On a grating type gear integrated error measuring equipm ent, this technique employs the three-point method error separation technique fo r separation of the systematic error of the measuring chain of equipment spindle system including measuring worm error, grating transducer error, bearing rota ry error etc.

在一台光栅式齿轮整体误差测量仪上，它用三点法误差分离技术能分离开仪器轴系测量链的系统误差(包括测量蜗杆误差、光栅传感器误差、轴承回转误差等)和被测齿轮的全谐波误差。

There are many kind of flow network systems in power plant.such as air-gas system,feedwater systemxondensate system,live steam sy...

由于电站中存在着许多热工流体网络系统，如风烟系统，给水系统，凝结水系统，主蒸汽系统，再热汽系统，轴封系统，油系统和冷却水系统等。

Based on the elastic theory of large deflection and by taking into account the variation of the axial force and its effects on bending deformation of the drillstring in vertical section ,the vibration of the drillstring induced by fluctuating weight on bit is described by a parametrically excited system.

基于弹性大变形理论，考虑到轴力沿钻柱轴线的变化及其对钻柱弯曲变形的影响等因素，将受自重作用的铅垂井段钻柱在波动钻压激励下的振动转化为一个参数激励系统，用 Galerkin方法首次得到了描述此系统的 Mathieu方程，并通过将方程的解展成富里叶级数的方法，得到了该振动系统的动力分岔值曲线及其所包围的动力不稳定区。

Its main advantages are: 1 Ploughshares former can Geng Sada narrow, sharp-angle, and then a small field can be competent. 2, spiral Ploughshares high-speed rotation, tillage Shulan soil formation, may omit rake mud, soil and other pressure Suitu site preparation process. 3, spiral Ploughshares work will push the soil later, will pull the machine forward traction, it can effort can be smaller engine-driven. 4, the spiral Ploughshares work itself traction to overcome the original style, to break through resistance to the plow, the machine tray can be fitted with the lower part of farming feet deep mud paddy field. 5, the spiral Ploughshares put on the handling round, you can use the drive shaft Ploughshares handling round, 20-30 cm wide in the small mountain ridge or drive to complete removal. 6, according to the plane of principle, can also be designed as a multi-Ploughshares, or a variety of forms, suitable for large-scale farming machinery Plain.

它的主要优点是：1、犁头在前能耕狭田窄地，田尖地角，再小的田地都可胜任。2、螺旋犁头高速旋转，被耕泥土熟烂平整，可省去耙泥、压土等碎土整地过程。3、螺旋犁头工作时将泥土往后推，有将机器往前拉的牵引力，因此可以省力，可用较小的发动机驱动。4、由于螺旋犁头工作时本身有牵引力，克服了原式华犁的对闯阻力，在机器下部装上托盘就可耕作深泥脚水田。5、把螺旋犁头换上小搬运轮，就可利用犁头轴的动力驱动搬运轮，在20—30厘米宽的小山路或田埂上行驶完成搬运。6、根据该机工作原理，还可设计成多犁头或各种形式，适合平原的大型耕作机械。

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。

In the first aspect, for the first time, the g factor of the ground state and its PS of SrTiO〓: Cr〓 or SrTiO〓: Mn〓, the uniaxial-pressure-induced splittings of t〓E and t〓A〓 levels of SrTiO〓: Cr〓, the R-line TS of SrTiO〓: Mn〓 and SrTiO〓: Cr〓 have been uniformly calculated by using microscopic theory, and all above-mentioned experimental data, including the very unusual R-line TS of the two crystals, have been satisfactorily explained.

第一方面，本文首次对SrTiO〓：Cr〓和SrTiO〓：Mn〓的基态g因子及其压致移位、单轴压力导致的SrTiO〓：Cr〓t〓E和t〓A〓态的分裂、SrTiO〓：Mn〓R线的热致移位和SrTiO〓：Cr〓R线的热致移位进行了统一的微观理论计算，满意地解释了两种晶体的R线反常热致移位等上述各种实验结果。

Through the detailed analysis, the test results of SRC column specimens with different ratios of axial compression, steel skeleton and stirrup, the failure modes, the hysteresis characteristics, the ductility, the stiffness degradation and the energy dissipation capacity are specially discussed.

进行了6根内配方钢管的钢骨混凝土柱低周反复荷载试验，对轴压比、配骨率及配箍率等因素对钢骨混凝土柱滞回特性、延性、刚度退化和耗能性能的影响进行了分析，提出了保证钢骨混凝土柱延性的一些措施。

The present study is designed to seek the evidences of regeneration of auditory epithelia and acoustic nerve in the postnatal chick, By using the methods of tissue cultures, scanning electron microscopy, autoradiography and the cell image analysis technique, we observed the regeneration of auditory hair cell after intense sound exposure, and also neuron repair following a mechanical injury with either in vivo or in vitro.

本研究应用物理性噪声，建立了内耳听器-基底乳头声损伤的模型和初级听神经元纤维机械损伤的模型。在此基础上应用体外组织细胞培养、扫描电镜、放射自显影、光镜以及细胞图象分析等多种形态学方法，综合分析了听觉毛细胞和初级神经元轴突的再生反应。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。