查询词典 by force

We could imagine that the force was balanced by an electromagnetic force generated by the electric charges in the other stars through an electromagnetic field around the stars.

我们可否想象成，这是由于附近其他星体所带电荷，在两星周围产生的电磁场在起作用，抵消了这个力。

He analyzes historical figures with a clearcut class stand and emphasizes that people are the motive force in the making of history and all social changes have force in the making of history and all social changes have been made by people, not by the few great personalities.

李大钊对历史人物的分析有着鲜明的阶级立场，他强调人民群众是历史的主人，认为社会上的一切活动和变迁全为人力所造，决不是几个伟人。

In this thesis, a semi-classical model of the force on an atom is used to describe the motion of a two-level atom interacting with a standing wave laser field. The velocity dependent force and momentum diffusion are derived through optical Bloch equations by using the matrix form of the continued fraction technique. By investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom.

本文利用半经典理论，从二能级原子在激光驻波场中所满足的运动方程出发，推导出密度矩阵元所满足的递推关系，利用矩阵连分数方法求解出密度矩阵元，从而求出依赖于原子运动速度的光压力与动量扩散系数，通过讨论原子在激光场中的动力学行为，为原子在激光场中被囚禁、形成原子列阵以及可控制的量子态，从而为量子信息处理提供理论基础。

The cavity can be divided into two typical zones: the Rayleigh_Benard-like convection zone governed by the centrifugal buoyancy force occupying the upper cavity, and the forced convection zone governed by the inertial-force down under. These two zones interact with each other via the exchange of mass, momentum and energy.

对换热而言，流场的振荡对上游盘和盘罩的换热影响比较明显，随离心浮升力的增加平均换热增强；下游盘的换热主要受流体冲击的影响，随惯性力的增加平均换热增强。

After analyzing the characteristic of the rigid plane motion and the shortcomings of classical digital image correlation algorithms, the phase-angle position of the rigid body in the 2D image was characterized by 1D sequence signals using the method of equiangular sampling feature extraction based on circle windows. Then the generalized correlation algorithm for estimation of time delay based on wavelet transform was used to acquire the angular displacement. Finally the ultrasonic radiation force acted on the micro-component was determined by the relation between force and motion.

在研究检测对象刚体平面运动特点和分析传统数字图像相关算法局限性的基础上，采用基于圆周窗口等分角采样的特征提取方法，将二维图像中刚体的相角位置信息表征为一维采样时序信号，并通过基于小波变换的广义相关算法来估计位移前后特征序列的时延，得到刚体的旋转角位移，从而利用力与运动量的相互关系确定出作用于微构件的超声辐射力。

In the meantime the Chinese air force's combat capability has also been greatly enhanced and the Sino-Soviet pilots in a number of air began to fight side by side. October 24 1951 34 U.S. planes bombed sunchon Bridge the Sino-Soviet Air Force MiG-40 aircraft took off against the same time the U.S. shot down an F-84 fighter jets and a B-29 bombers. October 30 56 are in operational status of Sino-Soviet Mig -15 aircraft chongchon-gang over against by the 21 B-29 aircraft and 200 fighter escort composed of the U.S. fleet shooting down 12 B-29 aircraft and four aircraft F-84 aircraft.

在此期间，中国空军的作战能力也大大增强了，中苏飞行员在许多空战中开始并肩作战。1951年10月24日，34架美国飞机轰炸顺川大桥，中苏空军共40架米格飞机同时起飞迎战，击落美国1架F—84战斗机和1架B—29轰炸机。10月30日，56架处于战备状态的中苏两国米格—15飞机在清川江上空迎战由21架B—29飞机和200架护航战斗机组成的美国机群，击落12架B—29飞机和4架F—84飞机。

The drag force acting on particles by gas phase is calculated based on empirical correlation proposed by Di Felice, and the counter force of particles to gas phase in a gas grid is determined based on PSIC method.

本文对密相流化床内流化过程的模拟较好地复现了气泡在流化床内的形成、分离、移动、长大及破裂的周期性变化以及相邻气泡间的合并和变形过程。

Force strength brand DCC800 parameters Serial program unit technical parameters 1 KN8000 clamping force 2 mm760 clamping trip 3 mould thickness (minimum - most mm400-950) 4 template size mm1400 level x x 1395 5 LinZhu elder brother mm910 910 from within 6 elder brother LinZhu mm180 diameter 7 booster shot force (KN665 8 mm760 trip shot materials 9 hammer mm80 diameter, 90, 100 10 shot Kg7.2 feed, and 9.1 11.2 11 casting Mpa132.8, 1.01, 85 12 casting cm2600 area, 760, 940 13 biggest casting 40Mpa area (cm22000) 14 shot cm2mm - 250 Kg/position 15 punch out mm297 distance 16 ejection chamber flange diameter mm200 17 ejection chamber flange plate height mm20 set out 18 top KN315 output 19 the mm180 trip 20 Mpa14 work pressure system 21 KW37 motor power 22 tank L1200 volume 23 machine Kg39400 weight 24 machine envelop dimensions by 2010 mm8

请可以把下列技术参数翻译成英语？力劲牌 DCC800参数序号项目单位技术参数 1锁模力KN8000 2 锁模行程 mm760 3模具厚度mm400-950 4模板尺寸mm1400×1395 5哥林柱内距mm910×910 6哥林柱直径mm180 7压射力KN665 8射料行程mm760 9锤头直径mm80、90、100 10 射料量 Kg7.2、9.1、11.2 11铸造压力Mpa132.8、104.9、85 12铸造面积cm2600、760、940 13最大铸造面积（40Mpa）cm22000 14压射位置Kg/ cm2mm-250 15冲头推出距离mm297 16压射室法兰直径mm200 17 压射室法兰凸出定板高度mm20 18顶出力KN315 19顶出行程mm180 20 系统工作压力Mpa14 21电机功率KW37 22油箱容积L1200 23机器重量Kg39400 24机器外型尺寸mm8660×2010×2780

For the influence of the residual strain of alloyed plate on rolling force cannot be removed by conventional rolling force self-learn method,and based on the classic deformation resistance model,the influence of residual strain on rolling force is analyzed and correspondent mathematical model for engineering calculation is afford.

针对合金元素含量较多的中厚板在轧制过程中其残余应变对轧制力的影响无法通过自学习来克服的问题，在常规变形抗力模型的基础上，分析了残余应变对中厚板变形抗力的影响，并由此提出了残余应变的工程计算模型。

The authors analyze the operation characteristic of distance protection of transmission line connecting wind farm with power grid under the variation of parameters such as the amplitude ratio of electromotive force at both sides, the phase difference of electromotive force at both sides, equivalent impedance of sources, system frequency and so on; based on the real-time current and electromotive force at wind farm side as well as the information of wind power generators participating power generation, a method to adaptively set the operation boundary of distance protection by use of the information at wind farm side only is proposed.

文章分析了风电场和电网联络线的距离保护随电源电势幅值比、电势相位差、电源等效阻抗、系统频率等参数变化时的动作特性，并基于风电场侧的实时电流和电势与参与发电的发电机信息，提出了仅利用风电场侧信息量自适应整定保护动作边界的方法。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷