This law states," Every object in a state of uniform motion tends to remain in that state of motion unless a net external force is applied to it. " 牛顿第一运动定律是这样描述的,“一切物体总保持匀速直线运动状态或静止状态,直到外力迫使它改变这种状态为止。”
Research on Uniform Motion of Piston in Double Cylinder Single Acting Piston Pump 双缸单作用活塞泵中活塞匀速运动的探讨
Study on the aerodynamic noise of a fastback car with rear view mirrors in uniform motion and accelerated motion 匀速及加速行驶时带后视镜轿车气动噪声的研究
If a body is kept free of the action of forces, it will remain in its state of rest or of uniform motion in a straight line. 物体如果不受外力的作用,将保持静止的状态或沿直线作匀速运动。
Blurred Image Restoration of Local Uniform Motion Based on Z Transform 基于Z变换的局部匀速运动模糊图像恢复算法
If you were content to remain at rest or in uniform motion relative to an unaccelerated frame of reference, no force would be needed. 如果你愿意相对于一个非加速的参照系去保持静止或匀速运动,并不需要有力作用。
Calculation of the electromagnetic field generated by an electric dipole of uniform motion in a straight line of arbitrary direction 沿任意方向作匀速直线运动的电偶极子的电磁场
( physics) the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force. 在没有外力作用的情况下,静止的物体保持静止状态或运动着的物体保持匀速直线运动的倾向。
As Professor Wolfson points out, the essence of relativity can be summed up in a single sentence: The laws of physics are the same for all observers in uniform motion. 正如沃弗森教授所指出的,相对论的精髓可以浓缩成一句话:在所有相互作匀速直线运动的惯性系中,物理定律具有相同的形式。
The beat signal model of the stationary, uniform motion and accelerated motion target is sinusoid, Linear Frequency-Modulated ( LFM) signal and polynomial-phase signal ( PPS) respectively. 静止、匀速运动和加速运动三类目标分别对应着正弦信号、线性调频(LFM)信号和多项式相位信号(PPS)三种差频信号模型。
High speed motion of camera causes blur image. On the assumption of uniform motion of the camera, on the basis of Wiener filter algorithm, restoration model is presented on motion-blurred image. 由于相机高速运动会导致图像模糊,在相机匀速运动假设的前提下,本文以维纳滤波算法为基础,给出了运动模糊图像的恢复模型。
Distribution of electric and magnetic field of electric dipole in uniform motion 匀速运动的电偶极子的电场和磁场分布
Simplified rigid body dynamic model for a parallel kinematics machine under uniform motion 匀速条件下并联机床刚体动力学模型的简化
Non uniform motion can be produced by using a servo motor to drive a middle transmission system. 非均匀运动可以由伺服电机带动中间传输机构来完成。
Gauss 'theorem for fieid of charges in uniform motion 匀速运动电荷电场中的高斯定理
A Method of Computation of Electric Field in Uniform Motion of Point Electric Charge 匀速运动点电荷电场的一种计算方法
Restoration of uniform motion blurred images using the projection iterative method 用投影迭代法实现匀速直线运动模糊图像的复原
It keeps a uniform motion in longitudinal direction after it forms; This article presented the general design and simulation methods for TSE and also gave an example with uniform motion land as its larger. 涡头部沿流向作匀速运动;本文阐述了目标状态估计器的设计一般方法,并以地面匀速运动的坦克为目标,对其进行了设计与仿真。
The jacobian matrix of 4-RPTR parallel mechanism is established by using the method called imaginary mechanism, then establish the velocity equation, And draw the input velocity change curve under the condition of uniform motion of the motion platform. 运用虚拟机构法建立了机构的雅克比矩阵,并以此建立了机构的速度方程,绘制了在动平台匀速运动的情况下,机构的输入速度的变化规律曲线。
According to discrete conception, mechanism of image blur caused by uniform motion is analyzed. Mathematical models of image blur and restoration by uniform rotation motion are established by means of Z transform. Fast restoration algorithm is presented. 从离散直观角度分析了由匀速旋转运动引起图像模糊的机理,通过Z变换方法,建立了由匀速旋转运动引起图像模糊的退化模型和恢复模型,并给出了快速算法。
In this paper analyzes and demonstrates two problems in the experiment of using oscillograph: one is the function of triggering level, the other is why the horizontal scan spot moves in uniform motion. 本文对示波器的使用实验教学中关于触发电平的作用、调节它的目的和水平扫描点匀速运动的问题进行了分析和论证。
The experiment proves that this method can perfectly control the running modes such as starting, acceleration, uniform motion, slowdown and creeping of the hoist. 实验证明,该方法可更好地实现提升机的启动、加速、匀速、减速及爬行等各运行阶段的控制。
The hydrodynamic characteristics of finite thin wing having uniform motion and with the distance from the wing to a boundary ( ground or free surface) changing with the time have been studied. 本文研究以等速运动但距界面(固壁或自由面)的距离随时间变化的有限翼展薄翼的流体动力特性。
This paper introduced leading in height rapidly, accurately and safely through a shaft by means of uniform motion method, the precision and the application of the method were made analysis and discussion. 介绍了在不影响矿山正常生产的情况下,采用匀速运动法迅速、精确、安全地通过竖井导入高程的方法,并对其精度及应用进行了分析和探讨。
Wavemeter requires that the guide can move in uniform motion and along straight line. 波长计要求导轨运行平稳,直线性好。
For a non uniform motion production in high speed and heavy load cases, a mechatronics, two degree of freedom mechanism is introduced in this paper. 介绍了对于高速重载下的非均匀运动产生的机电一体化两自由度综合驱动机构。
The electromagnetic momentum density of the electromagnetic polarization medium with uniform motion was calculated on the basis of the relativistic electromagnetic momentum density was derived in electromagnetic field in any inertia system. 导出了相对论电磁力矩密度矢量,由此可以在任何惯性系中计算电磁场中匀速运动的电磁极化介质的电磁力矩密度。
Subsequently the motion form is extended to arbitrary uniform motion; 将运动模型扩展到任意形式的匀速运动,并给出了数学模型。
It is defined that the actual scanning motion is composed of uniform motion and non-uniform motion, thus the actual curing line appears variously. 由于明确了实际扫描动作是由匀速运动和非匀速运动所组成的,因此实际扫描的固化线条是非均匀一致的。
The principle of equivalent method from the uniform sampling data with variable motion to the non-uniform sampling data with uniform motion is expounded, and from this, the SAR imaging for variable motion based on non-uniform discrete fourier transform is studied. 阐述了将变速运动等间隔时间采样的回波数据等效为匀速运动中非等间隔时间采样数据的原理,并由此导出了基于非均匀傅里叶变换的变速直线运动SAR算法。