查询词典 moment

Inertial mass and moment of inertia of inertia are used, but they are different physical quantities, there is no secondary school physical moment of inertia term may be not to mention the difference between the two.

惯性质量和转动惯量都用来表示惯性，但它们是不同的物理量，中学物理不出现转动惯量的名词，可不必提两者的区别。

The whole process of moment-curvature relationship for RC beam was analyzed with the relative depth of compressive zone of the beam about 0.15 using the strip integral method and computer programme. The relationships between moment and strain of concrete, strain of steel, depth of compressive zone were got.

采用条带积分法，应用计算机编程，对相对受压区高度为0.15左右的钢筋混凝土梁的弯矩－曲率关系进行全过程分析，得出弯矩－曲率关系曲线，并给出弯矩与混凝土应变、钢筋应变及梁的相对受压区高度的对应关系。

Because the workpiece is in dynamic balance, the resultant moment acting on it should be zero. Introducing the moment from lapping tool and press head a moving differential equation is built. In this equation only workpiece rotating speed is unknown. It means that workpiece rotating speed can be got by this equation. Since there is a transcendental function in integral function of the equation an analytic result can not be got, only digital result can be got by a computer. Thus a change rule of workpiece rotating speed with lapping parameters is known, e.g. the radius of press disc ball socket, radius of press head ball, the distance between the workpiece rotating axis and lapping tool rotating axis, workpiece radius, modulus of elasticity of the press head and press disc, friction coefficients between the lapping tool and workpiece, and between the head and disc, pressure between the lapping tool and workpiece and pressure between the press head and press disc.

因工件处于动态平衡状态，其上所受到的来自于磨具和压头的力矩应相等，将二力矩表达式联立，建立工件运动微分方程，该方程中只有工件的旋转角速度是未知量，因此可以求出工件旋转角速度，但该方程积分式中含有超越函数，得不出解析解，只能通过计算机求出数值解，得出工件旋转角速度随各研磨参数的变化规律，如压盖球座半径、压头的球头半径、工件回转中心相对磨具回转中心的偏心距、工件半径、压头和压盖材料的弹性模量、磨具与工件间的摩擦系数、压头压盖间的摩擦系数、磨具与工件间的压强、压头压盖间的压力等。

In this thesis, moment-volume instability in Invar materials and induced transitions of atoms from high moment state to nonmagnetic state with elevating temperature are taken to understand composition- and temperature-dependence of investigated magnetic and elastic properties of 〓.

在本工作中，Invar材料中的磁矩—体积失稳以及由其产生的随温度升高从高磁矩态向非磁态的原子跃迁机制被用来理解〓的磁性和弹性的成份和温度依赖。

This paper analyses the influence of scale factor on moment invariant features in discrete,constructs a new moment invariant with both scale,translation and rotating invariance.

分析了在离散状态下比例因子对不变矩特征的影响，构造了一种新的不变矩，使其具有平移、旋转和比例因子的不变性。

In this paper, we have used the theory of moment invariant to identify the orbit, constructed feature vector based on moment invariant, defined the distance between the two feature vectors, and proposed a new method of the identification, which ...

仿真与实验结果表明，该方法可以有效地识别常见的轴心轨迹，并收到了良好的效果

Can we believe,with these impressions on his mind,that if,after a year,eighteen months,or two years of peace had elapsed,he should be tempted by the appearance of fresh insurrection in Ireland,encouraged by renewed and unrestrained communication with France,and fomented by the fresh infusion of Jacobin principles;if we were at such a moment without a fleet to watch the ports of France,or to guard the coasts of Ireland,with- out a disposable army,or an embodied militia capable of supplying a speedy and adequate reinforcement,and that he had suddenly the means of transporting thither a body of twenty or thirty thousand French troops;can we believe that,at such a moment,his ambition and vindictive spirit would be restrained by the recollection of engagements or the obligation of treaty?

难道我们能够相信，和平了一年、一年半或两年之后，如果心头压着这些想法的他受到爱尔兰新出现的暴乱的诱惑，受到重新开通的与法国不受拘束的通讯的鼓舞，受到新注入的雅各宾党人原则的挑唆；倘若我们此时没有一支海军去监视法国港口或保卫爱尔兰海岸，没有一支可随时调动的军队或一支已建成的国民军提供迅速、足够的增援，而他却突然获得向各处运送2万至3万法国士兵的手段；难道我们能够相信，此时此刻，他的野心和复仇心态会因想到自己所作的那些保证或他所承担的条约义务而受到约束吗？

That will determine whether these results turn out to be our 1991, the moment John Major recovered, or our 1995, the moment Tony Blair became undefeatable.

这将会确定是否这些结果又是我们的1991年，时刻梅杰收回，或我们的1995年，目前托尼布莱尔成为

Juke lives in the moment in 1952 and that moment can't be repeated, no matter how much we study the tab.

juke这首经典歌曲诞生于1952的那个瞬间，这个瞬间不再来到，研究再多的谱子你也不可能精确重复它了。。。。

Through the characteristic parameters, the system's real-time moment of inertia is given. Then golden section adaptive control law and logic derivative control law both based on moment of inertia are designed. The two kind of control laws are combined to control the attitude of spacecraft and their simulation results are compared with the ones of PD control law which is designed based on the certainly-known system model. The results show that this adaptive control law is effective on the kind of time-variable system studied in this paper.

根据特征模型的参数推算了系统实时的转动惯量，设计了基于转动惯量的黄金分割自适应控制器和逻辑微分控制器，将这两种控制器相结合对带有可伸缩挠性附件的刚体进行姿态控制，仿真结果与基于确知系统模型所设计的变系数PD控制器相对照，表明了该自适应方法控制一类时变系统的有效性。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了