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relative rotation     
相关语句
  相对转动
     Stability and approximate solution of nonlinear dynamic system of a cylinder with two end faces in relative rotation
     二端面转轴相对转动非线性动力学系统的稳定性与近似解
短句来源
     Principal Resonance and Secondary Resonance Solution of Nonlinear Dynamic System of of a Cylinder with Two Ends Faces in Relative Rotation
     二端面转轴相对转动非线性动力学系统的主共振与次共振解
短句来源
     A Modified Approach to the Calculation of the Relative Rotation Matrix for Twin Region in the Crystallographhy of Martensitic Phase Transition
     马氏体相变晶体学中孪晶区域相对转动矩阵计算方法的改进
短句来源
     On the basis of equal view angle principle relative motion transfer, and relative rotation pole-line determination, introduces a geometric design method of spatial four-bar linkage mechanism under a giren corresponding location of two, three, or four sets of linkagcs.
     本文通过时空间四连杆机构的等视角原理、相对运动转换及相对转动极线确定方法和研究,找到按给定连架杆两组、三组、四组对应位置的空间四连杆机构的几何设计方法。
短句来源
     Through rigid body relative rotation error, the kinematic parameter deviations contributing to the rotation error can be identified.
     利用刚体相对转动误差识别出仅与转动相关的运动学参数误差;
短句来源
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  相对旋转
     By seeking the smallest error between two FFT feature matrixes,the relative rotation can be resumed.
     通过错位对齐两个幅度谱特征矩阵计算最小幅度差,由粗索到细索两个步骤可精确恢复两枚印章的相对旋转角度.
短句来源
     Based on crystal electro-optical effect, the measurement of relative rotation angle of two coaxial rotating systems is realized.
     利用晶体的电光效应可实现 2个同轴转动物体之间的相对旋转角度的测量 .
短句来源
     Conclusion:Measuring and analysing the relative rotation angle of C 1 on C 2 in functional position by CT,and the change of ADI would be helpful for the diagnosis of ARRF.
     结论 :测量功能位寰枢椎相对旋转角度 ,分析寰齿前间隙的改变 ,有助于寰枢关节旋转性固定的诊断
短句来源
     The method of topological invariants are applied for analysis of chaos characteristics in power system at the first time. Using poincare mapping we draw the bifurcation graph, extract the period orbits and topological invariants—local crossing number, relative rotation rates and linkingnumber during the process of period-doubling bifurcation and chaos. We also study the effect on topological invariants when sensitive parameters and initial condition change.
     首次将拓扑不变量的概念应用于电力系统混沌特征分析之中,并利用Poincare截面绘制系统分叉图,抽取各周期轨道,提取倍周期分叉和混沌状态的拓扑不变量——局部交叉数、相对旋转率、链接数,进而研究系统敏感参数和初值的变化对拓扑不变量的影响。
短句来源
     THE BOUNDARY PERTURBATION SOLUTION OF THE FLUID FLOW BETWEEN TWO CO-AXIAL CONES WHICH ARE IN RELATIVE ROTATION AND WITH AXIAL FLOW
     带轴向流的二相对旋转锥形杯之间流体流动的边界摄动解
短句来源
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  相对转角
     Correct Solution of Relative Rotation Angle of Gears in Harmonic Drive
     谐波传动中齿轮相对转角的正确解
短句来源
     The selection of engagement and geometrical parameters of harmonic drive presnt is mainly derived from the literatures listed in reference,in this paper,the relative rotation angle formula which is deduced and applied in the above materials is proved incorrect.
     目前关于谐波齿轮传动啮合参数及几何参数的选择主要来源于所列参考文献, 本文指出上述文献中关于谐波传动齿轮相对转角的计算公式是不准确的;
短句来源
     The relative rotation speed of twain section using coherent light coming out from the same laser at four points in twain section is measured. By integrating the relative rotation speed, the relative rotation angle is gained,further torque measurement is realized.
     它是利用由同一激光器发出的在被测转轴2个截面上4个点处的相干光束测量这2个截面的相对转速,然后通过积分得到两截面的相对转角,进而实现被测转轴扭矩的测量。
短句来源
     According to the column effective length concept of steel frames stability design, the effective length factor of columns in semi-rigid steel frames is studied. The modified factor formulas, which are applicable to the braced and unbraced steel frames, are derived by the joint relative rotation under consideration and by adopting the modified stiffness factor.
     根据钢框架稳定设计中柱子计算长度的概念 ,研究了钢框架中梁柱节点半刚接柱的计算长度系数取值问题 ,采用螺旋弹簧模拟梁柱节点连接的半刚性 ,考虑了梁柱间的相对转角关系 ,通过引入梁柱线刚度比修正系数的计算方法 ,推导了有侧移和无侧移半刚接钢框架柱计算长度系数的修正公式 .
短句来源
     With the laser beams at four points of twain sections,the relative rotation velocity of twain sections is measured. By integrating the relative rotation velocity,the relative rotation angle is acquired, therefore the torque measurement is realized.
     由高相干激光器发出激光投射到转轴2个平行截面4个点上,测量两个截面的相对速度,经过积分得到两截面相对转角,最终实现扭矩的测量。
短句来源
  “relative rotation”译为未确定词的双语例句
     In the self-iliac bone group,the absolute rotation angle decreased 2.2°(P=0.006),and the relative rotation angle decreased 1.3°(P=0.017),height of intervertebrae decreased an average 2.79mm(P<0.001) at anterior border and 0.99mm(P=0.037) at posterior border.
     而使用自体髂骨植骨融合的病例节段前凸角、颈椎前凸角在随访中较术前减少,分别为1.3°(P=0.017)、2.2°(P=0.006); 并且椎间前后缘高度也有所下降,分别为2.79mm(P<0.001)、0.99mm(P=0.037)。
短句来源
     The computative methods of the relative rotation in the velocity field and the whole rotation of linear structure and the error ellipsoid of the velocity field are also discussed.
     文中对反演的理论与方法作了详细论述,并讨论了速度场内的相对大地转动和线性结构的整体转动以及速度场的误差椭圆的计算方法
短句来源
     For solving the difficult calculation problem of nonlinear differential equation of motion of complex revolving shaft in relative rotation , a new decoupled equation was proposed by using series method , which expands the nonlinear differential equation into a series of algebraic equations and the series solution is obtained.
     为解决相对转动体非线性运动微分方程的计算难题,构造了一种级数解耦方法,把微分方程转化为代数方程求解,得到了相对转动体运动方程的级数解.
短句来源
     The study of spiral CT for the relative rotation of atlantoaxial joint and its clinical significance
     寰枢关节旋转运动CT扫描的临床意义
短句来源
     Using distance dependent tight binding molecular dynamics model (DDTB MD), the relative rotation processes in the sodium cluster collisions have been studied at the different incident energies and different impact parameters.
     采用距离相关紧密束缚的分子动力学模型 ,研究了在不同碰撞能量以及不同的碰撞参数下 ,碱金属团簇碰撞过程中的转动行为 .
短句来源
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  relative rotation
By using quaternion algebra, relative rotation between two particles is decomposed into two sequence-independent rotations such that all interactions due to the relative motions between interactive rigid bodies can be uniquely decided.
      
The sensitivity of the technique is shown to be from the order of micrometer to that of millimeter depending on the frequency of the virtual grating and the amount of the relative rotation.
      
This molecule is nonplanar due to the tetrahedral coordination of the C(1) atom and the relative rotation of phenyl and benzochromene rings.
      
The model is based on the Voigt scheme in a differential form corrected for the effect of couple-stresses arising in the matrix of composites due to relative rotation of reinforcing fibers.
      
For calculating the deformation properties of the ±π/4 cross-ply plastic, a refined version of the Voigt method is applied taking into account also the couple-stresses arising in the composite due to relative rotation of the reinforcement fibers.
      
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Tong dies with four different tooth-designs are available for used. They are straightaway-tooth, tiger-tooth, convex bicircular-tooth, and flat bicircular-tooth. Operational performances of these different kinds of dies are investigated and described in this paper. The writer interprets that the teeth on both ends of the flat bicircular-tooth dies grip the drill pipe readily, so that all (longitudinally) teeth bear on the surface of the pipe rather than just those in the middle. Thus, the relative rotation...

Tong dies with four different tooth-designs are available for used. They are straightaway-tooth, tiger-tooth, convex bicircular-tooth, and flat bicircular-tooth. Operational performances of these different kinds of dies are investigated and described in this paper. The writer interprets that the teeth on both ends of the flat bicircular-tooth dies grip the drill pipe readily, so that all (longitudinally) teeth bear on the surface of the pipe rather than just those in the middle. Thus, the relative rotation of the die is avoided and the wear and tear of drill pipe minimized. On the other hand, the optimum tooth cross-sections of this kind of dies provide higher strength and impact-resistance, and permit the die to last longer than the other three.

钻井吊钳的牙板现有四种齿形:直齿、虎齿、双圆弧鼓形齿和双圆弧平面齿。文章对四种齿形矛板的工作情况进行了对比分析,指出双圆弧平面齿牙板与钻杆扣合时,两端齿尖易吃入钻杆表面,沿牙板长度方向所有牙板齿都与钻杆接触,避免了牙板的相对转动,减小了对钻杆的磨损。此外,这种牙板两端的齿小而短,中间的齿粗而长,整个齿面强度高,耐冲击,故其使用寿命高于另外三种齿形的牙板。

In the paper, the author evaluated the long period acceleration of the rotation of Venus caused by both the torque of the solar gravitation tide and the atmospheric friction of the zonal wind which has been measured by the Pioneer Venus and Venera probes. According to the total torque exerted by the solar east-west force applied to the whole mass of Venus, if the original anticlockwise rotation period of Venus is To =15 hours, and the quality factor Q is 25.0 (Q-r' = tge, Melchior, 1978), we obtain the change...

In the paper, the author evaluated the long period acceleration of the rotation of Venus caused by both the torque of the solar gravitation tide and the atmospheric friction of the zonal wind which has been measured by the Pioneer Venus and Venera probes. According to the total torque exerted by the solar east-west force applied to the whole mass of Venus, if the original anticlockwise rotation period of Venus is To =15 hours, and the quality factor Q is 25.0 (Q-r' = tge, Melchior, 1978), we obtain the change of the rotation rate ωtide=1575"/ century2, and the estimation is made by numerical integration that t is nearly equal to 20 billion years, the rotation of Venus would reach the same period with its today's orbital motion. However, the time scale is much larger than the existence of the solar system.Based on the datum of good quality transmitted by Pioneer Venus and Venera probes on atmospheric circulation of the surface of Venus, results obtained in recent years indicate that the average circulation is mainly easterly zonal wind, that is, retrograde (Schubert, 1980; Kel-dysh, 1977; Kerzhanovitch, et al, 1980; Linaye, 1985). We take the average density of the Venusian atmosplvre p=21.6 kg.m-3, the longitudinally averaged zonal wind speed u = 12.2 ms-1 (Schubert, 1980), and the latitude range of the cloud level circulation is between ±60°, (hen the corresponding = 1647"/century is obtained. Consequently, the total change of the rotation rate caused by the solar gravitation torque NEW and the zonal wind torque F can be expressed as: Venus rotation anticlockwise enus rotation clockwiseWhere To = 15 hours, and the unit of T is in hour. It can be estimated that: (1) the time of evolution from quick rotation anticlockwise to the period of today's orbital motion with same direction is about t1 = 3.22× 199 Yr; (2) from the begining of relative rotation (retrograde) to the present period of rotation with T = 243 days, the time t2 is equal to 1.19×107 Yr; (3) the present rotational rate is likely quickened due to the F, until the day of T=14 hours, when the NEW is approximated to the F, the time is about t3=11.5×109 Yr.

本文从理论上估计了金星由于受太阳东西向潮汐力矩作用,而引起金星自转速率的长期变化;并根据金星探测器对金星大气的探测结果,表明它具有稳定的向西环流,从而可得其对金星自转的影响。本文的讨论,证明了金星形成初期是一快速顺向自转的天体,仅太阳的潮汐力矩不可能解释它的自转演化。如果取金星形成之后初始自转周期T_0=15小时,则大气逆向环流与太阳潮的合力矩作用引起金星自转速率变化为: ω(T)=[1647″+δ_i×19705′.′5sin(4.°58(T_0/T))]/世纪~2{δ_i=+1,金星顺转 δ_i=-1,金星逆转}可以估计经t_1=3.22×10~9年,其自转与目前的轨道周期同步。又经t_2=1.19×10~7年,达今天的逆转243天周期。

Analyses and statistics of 1,150 samples of Devonian to Cretaceous from 191 sites inHoboksar, Karamay, and Manas-Urumqi area,reveal the following main results: (1) The pa-leomagnetic pole paths of northwestern and southern margins of Junggar Block during Carboniferous to Permian were built for the first time. The paleomagnetic poles in the two areas, utterly different from those of Tarim,Kazakhstan and Siberia blocks,were distributed in the same section. It indicated that the two areas were located in the same...

Analyses and statistics of 1,150 samples of Devonian to Cretaceous from 191 sites inHoboksar, Karamay, and Manas-Urumqi area,reveal the following main results: (1) The pa-leomagnetic pole paths of northwestern and southern margins of Junggar Block during Carboniferous to Permian were built for the first time. The paleomagnetic poles in the two areas, utterly different from those of Tarim,Kazakhstan and Siberia blocks,were distributed in the same section. It indicated that the two areas were located in the same structural unit. (2) The paleomagnetic results of Jurassic to Cretaceous from northwestern and southern margins of Junggar Block accord with those of Tarim Block. It shows that the paleomagnetic characteristics of both blocks are of low inclination and average paleolatitude of 24° N. The difference of declination (about 30°) during Jurassic between Urumqi and Hoboksar areas reveals 30 anticlockwise rotation of Hoboksar area relative to Urumqi area assuming magnetization in Urumqi is normal. Paleomagnetic results also show southward migration since late Paleozoic and substantial northward migration and relative rotation during Jurassic and Cretaceous. The modern structural configuration was probably caused by partially relative rotation. (3) China Continent was scattered in the paleo-Tethys Ocean within 45° N-15° S, as relative separated blocks,but not as a united entirety. (4) The different declination values of Permian, 164°-168° for northwestern and southern margins of Junggar Block,218° for Tarim Block and 229° for Kazakhstan Block, respectively,reveal 35°-55° anticlockwise rotation,probably caused by western nappe structures. The ultrabasic rock belt of West Junggar, as rotated anticlockwise by 35°-55°,should be located in the same structural zone with the ultrabasic rock belts of East Junggar and Gesangpo-Labozovk. (5) Northwestern and southern margins of Junggar Block have a paleolatitude of 30°-45° N (averaging 36°N) during late Paleozoic, showing the warm climates of the north,and paleolatitude of 20°-30° N (averaging 24° N) during Mesozoic, obviously southward migrated, showing humid and warm tropical climates. (6) The peculiar magnetic features (magnetic susceptibility and magnetic intensity) of Jurassic coal bed can be used to confine the fire zone in the covered area.

通过和布克赛尔、克拉玛依、玛纳斯—乌鲁木齐地区泥盆纪到白垩纪古地磁研究,主要取得以下结果:(1)首次建立了准噶尔西北缘及南缘石炭纪—白垩纪古地磁极移曲线,由石炭纪到二叠纪的古地磁极位置基本在同一区间,说明该时期这些地区为一个统一的构造单元,而其古地磁极明显与塔里木、哈萨克斯坦、西伯利亚地块存在着差异。(2)该地区侏罗纪及白垩纪古地磁结果与塔里木地块结果一致,侏罗纪乌鲁木齐与和布克赛尔磁偏角相差30°左右,说明和布克赛尔地区相对乌鲁木齐地区逆时针旋转了30°左右,晚古生代以后曾发生过南向移动,而侏罗、白垩纪以来均向北发生了相当规模的北向运动,并发生了相对旋转,目前东、西准噶尔的构造格局可能就是由于局部相对旋转造成的。(3)中国大陆在早二叠世还不是一个联合的整体,而是以相互分离的独立块体分布于45°N—15°S的古特提斯洋中。(4)该地区二叠纪的磁偏角为165°—168°,而塔里木为218°,哈萨克斯坦为229°,说明存在35°—55°的逆时针旋转,这个旋转可能是由于西部推覆构造造成的。如果将西准噶尔超基性岩带顺时针旋转35°—55°后,东准噶尔超基性岩带、西准噶尔超基性岩带和斋桑泊—鲁布佐夫斯克超基性岩带应在同...

通过和布克赛尔、克拉玛依、玛纳斯—乌鲁木齐地区泥盆纪到白垩纪古地磁研究,主要取得以下结果:(1)首次建立了准噶尔西北缘及南缘石炭纪—白垩纪古地磁极移曲线,由石炭纪到二叠纪的古地磁极位置基本在同一区间,说明该时期这些地区为一个统一的构造单元,而其古地磁极明显与塔里木、哈萨克斯坦、西伯利亚地块存在着差异。(2)该地区侏罗纪及白垩纪古地磁结果与塔里木地块结果一致,侏罗纪乌鲁木齐与和布克赛尔磁偏角相差30°左右,说明和布克赛尔地区相对乌鲁木齐地区逆时针旋转了30°左右,晚古生代以后曾发生过南向移动,而侏罗、白垩纪以来均向北发生了相当规模的北向运动,并发生了相对旋转,目前东、西准噶尔的构造格局可能就是由于局部相对旋转造成的。(3)中国大陆在早二叠世还不是一个联合的整体,而是以相互分离的独立块体分布于45°N—15°S的古特提斯洋中。(4)该地区二叠纪的磁偏角为165°—168°,而塔里木为218°,哈萨克斯坦为229°,说明存在35°—55°的逆时针旋转,这个旋转可能是由于西部推覆构造造成的。如果将西准噶尔超基性岩带顺时针旋转35°—55°后,东准噶尔超基性岩带、西准噶尔超基性岩带和斋桑泊—鲁布佐夫斯克超基性岩带应在同一构造带上。(5)该地区晚古生代古纬度变化不明显,位于30°—45

 
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