接下来便引出所有事物都发生在物质世界中，所有运动都会产生一系列的涡流，旋窝一个接着一个的出现。
So it follows that everything that happens in the physical world , all the motion that happens must be a series of vortices, whirlpools one within another within another and so on .
特别地，一个没有旋度的力场，就是一个不产生任何旋转运动的力场。
In particular, a force field with no curl is a force field that does not generate any rotation motion.
旋度实际上衡量的是，在任意给定点,运动旋转角速度的两倍。
The curl actually measures twice the angular speed of a rotation part of a motion at any given point.
最后一个说明了，磁场的旋度，是如何由电荷的运动产生的。
And the last one tells you how the curl of the magnetic field is caused by motion of charged particles.
而旋度度量了，运动中的旋转情况，这跟坐标系的选择有关。
And when I say that the curl measures the rotation in a motion, well, that depends on which coordinates you use.
它对于需要做旋变，自整角，检流计的运动和照明电路测试的仪器，能够在航空电力环境里进行全面的使用特性测试。
Instruments requiring the testing of Resolvers, Synchros, Galvanometric Movements and Lighting Circuits can be fully tested for operational performance in the Airborne Electrical Environment.
结论：旋前圆肌肌力减弱是C6神经根性颈椎病最常见的运动障碍，并且在有些C7神经根受压患者也会出现。
Conclusions. Forearm pronation weakness is the most frequent motor finding in C6 radiculopathies and may be noted in some cases of C7 nerve root compression.
是喜山运动早、中、晚三个岩浆旋迥的产物；
They were the products of the early-, middle- and late- magmatic cycles of Himalayan movement.
投球手发了一个旋球(如在板球、棒球等运动中)。
The bowler gave (a) spin to the ball, eg in cricket, baseball, etc.
分子量降低和消旋作用对温度的依赖性，是由于分子运动和笼罩效应以及重合的空间位阻效应所致。
The dependence of chain scission and racemization on temperature results from molecular motion, "cage effect" and steric hindrance during recombination.
试验表明编程时，可以采用设定变量法编写不同的旋轮运动轨迹形状，比较各种形状的加工效果。
The test shows when programming, shape of movement track of different turning wheel was compiled with enactment quantity method, machining effects of all sorts of shapes was compared.
这种算法使用旋量理论来描述机器人的运动。
This algorithm uses screw theory to describe the motion of the robot.
型劈开式皮带轮的旋压剖分成形过程涉及多体运动以及弹、塑性多变形模式的耦合。
The spinning process of splitting V type belt wheel involves movement of multi-body and couple of elastic-plastic deformation.
主旋翼是直升机建模的关键，详细讨论了与其相关的翼型气动力模型、 诱导速度模型和挥舞运动模型的建模方法。
Main rotor is the key part of helicopter modeling, the associated modeling methods of aerofoil aerodynamic loads, rotor inflow dynamics and blade flap motion are discussed in detail.
创造旋度一词为了有助于描述运动流体的性质。
The curl was invented to help describe the properties of moving fluids.
对实验室原有的DPIV系统进行了改进，并用该系统初步研究了内旋流流化床颗粒运动的速度场。
An improved version of the existing DPIV (digital particle image velocimetry) in the lab has been employed to conduct a preliminary research of the velocity field of the ICFB particle movement.
旋翼阻抗由旋翼在固定坐标系中的运动方程得到，这个运动方程由旋翼旋转坐标系中的桨叶模态方程导出。
The rotor impedance is calculated from the rotor equations of motion in the fixed- coordinate system derived from the modal equations of blade in the rotating-coordinate system.
文中首先给出自动驾驶仪的调节规律，继而列出装备有自动驾驶仪的单旋翼带尾桨式直升机的无量纲运动方程。
At first, control law of the autopilot equipment was given, then the non-dimensional dynamic equations of the single rotor helicopter with autopilot equipment were derived.
首先根据电控旋翼的刚体桨叶变距运动方程，推导了襟翼操纵量与桨叶桨距的显式关系式。
First, relationship between flap input and blade pitch was deduced based on the pitch kinetic equation of rigid blade.
本文设计的摄像头消旋平台能够隔离弹体的旋转运动，使摄像头采集回来的图像清晰稳定。
The rotation eliminated platform of camera designed in this paper is able to isolate the rotational motion of missile, clearing and steading the collected images.
分析了旋辊式机械脱胶过程中旋辊的运动和动力特征以及原麻的受力情况。
Analyzing the character of moving and dynamical character about roller, and the character of bearing loads about hemp during the course of rolling.
通过输入运动旋量和输出运动旋量表达机构的运动行为要求和设计需求。
Input motion screw and output motion screw are applied to represent design specification as well as kinematic behavior requirements.
在二十世纪二十年代的时候，这个观点又流行起来，用来解释银河系恒星之间类似的不规则运动。后来，该观点仍然用来解释星系旋臂的形成。
The idea was revived in the 1920s to explain similar irregular movements among the stars in the Milky Way and later still to describe the formation of galactic spiral arms.
按稳定尾旋的条件对飞机运动方程组作了简化。
In this paper, the non-linear differential equations of aircraft motion are simplified by the condition of steady spin.
结论：吡贝地尔单用或联合复方旋多巴应用，吡贝地尔可以较好地改善早期PD患者的精神、情绪和睡眠等非运动症状；
Conclusion:Both mono-use and combined use of piribedil can improve the mental status, depression emotion and sleep quality of early PD patients.
证明了规范场不仅沿入射电子在复连通区域运动路径的积分，而且还可沿入射标量或其他旋量粒子之一在复连通区域的运动路径积分，各自都将贡献一几何相因子。
It is justified that the integral of the gauge potential along path of not only electron but also scalar particle or spinor particle will contribute a geometric phase factor.
失速和尾旋是超音速战斗机的一种复杂而又危险的运动状态。
Stall and spin is a complex and dangerous movement state for supersonic fighter.
探讨了一种新型车削平面运动机床的运动机理，即定轴轮系的旋轮线原理。
The dynamic mechanism of a new type of machine tools for machining plane is discussed, which is the roulettes of the fixed axis gear train.
SCARA运动学的研究中，以旋量，李群李代数为基础的POE指数积法求解运动学正解，逆解以及速度雅可比。
In the study of SCARA's kinematics, POE is used to obtain positive, inverse and jacobian solution, based of screw, Lie groups and Lie algebra.
利用旋量理论建立机床基本功能模块的运动学表达式，并在此基础上完成机床机械系统的运动功能模块建模；
We use the screw theory to establish the basic functions of machine kinematics model. And on this basis, completing the motion module modeling of machine mechanical system.
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