In particular, a force field with no curl is a force field that does not generate any rotation motion.
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 rotation, force becomes torque, mass becomes moment of inertia, and acceleration becomes angular acceleration.
在旋转时，力变成力矩，质量变成转动惯量，加速度变成角加速度。
And if the curl is zero then it means that this force does not generate any rotation effects.
如果旋度是0，就意味着，这个力不产生旋转作用。
Placing a lidar in the centre of a turbine proved difficult, because of the centrifugal force generated by the turbine’s rotation.
由于涡轮旋转所产生的离心力，在一个涡轮的中心安置一个激光雷达是困难的。
N: Centrifugal force pushes it toward the point furthest, away from the point of rotation.
尼基：离心力会把汤甩向最远的一点，远离旋转点。
Because force is generated with help from the ground, bending your knees places your body in better position to produce trunk, hip, and shoulder rotation.
因为力量源自地面，弯曲你的膝盖能让你的身体处于一个更易通过躯干，髋和肩部转动获得能量的绝佳位置。
Right inverse pendulum by the body clockwise rotation of the force, can cause great impact force.
右反摆借身体顺时针旋转的力量，可以造成极大的冲击力。
The magma accumulates around the Equator, due to the centrifugal force of rotation.
由于地球自转的离心力，岩浆在赤道处聚集起来。
Find a way of force and motion coexist. Accordingly, the unification of the electromagnetic force, powerful force, gravity, and explains the turbulence and Earth's rotation principle.
发现了力和运动的共存方式。据此，统一了电磁力、强力、引力，并解释了湍流和地球自转的动力原理。
When the axis of rotation, because of the imbalance in the quality of centrifugal force between the utility, will the initiation of buckling deformation.
当主光轴旋转时，因为失衡品质离心惯性力的效用，主光轴将萌生屈曲变型。
Impurity pump mechanical seal after static test, the operation of high-speed rotation of the centrifugal force generated will inhibit the leakage of media.
杂质泵用机械密封经过静试后，运转时高速旋转发生的离心力，会克制介质的泄露。
Maximum rate of change of left knee, is a proactive force to bring the body to throw the direction of lower limb rotation.
左膝关节速度变化最大，是积极主动用力来带动身体下肢向投掷方向转动。
Based on this model, the expressions of critical field for the irreversible reversal magnetization and the coercive force are derived for both the parallel rotation and symmetric fanning mechanisms.
基于此模型，推导了纳米线反磁化过程中不可逆磁化的临界场和矫顽力在一致转动和对称扇形模式下的表达式。
The displacement, the position of the rotation center and the stress distribution of PDL were analyzed under 13 types of loading force system.
计算13种力系统下的上中切牙位移、转动中心及牙周应力分布。
In patient with severe degenerative changes of the cervical spine and unstability, the amplitude of rotation and the force of manipulation should be decreased.
对颈椎存在严重退变失稳的患者，应减小旋转的幅度和力量。
In the same way, the rotation of the material in a disk prevents it from collapsing inward under the force of gravity.
相同的道理，圆盘上物质的转动阻止了重力作用所引发的向内崩塌。
Body on the right to force the main active ankle, pushing the body to throw the direction of lower limb rotation.
身体右侧，以踝关节积极主动用力为主，带动身体下肢向投掷方向转动。
A kind of driving mechanism of micro-robot utilizing the traction force produced by the rotation of screws was studied.
研究一种利用螺旋旋转产生牵引力的微型机器人驱动机构。
The principal, ultraharmonic and subharmonic resonance of an elastic rotation shat with twin sides by a harmonic force is discussed, in this paper.
本文研究在简谐激励力作用下二端面弹性转轴相对转动的主共振、超谐波共振和亚谐波共振。
With the changing of muscular force, the movements such as flexion, extension, lateroversion and rotation were imitated, and the stress was calculated under different loads, respectively.
运用颈椎周围不同肌肉对颈椎作用力的变化，模拟正常活动范围内颈椎前屈、后伸、侧屈、旋转等多种工况。分别计算并得出相应载荷下钩椎关节、小关节应力值。
The evident difference among the flow patterns with different rotation number shows that the secondary flow induced by Coriolis force takes an important role in determining the flow structure.
不同的转动数下流场的形态有明显的差别，这表明由哥氏力引起的二次流在确定流场结构时起重要的作用。
Centrifugal force: the component of apparent force on a body in curvilinear motion as observed from that body that is directed away from the center of curvature or axis of rotation.
离心力：在曲线运动中可明显由物体上观察到的力的组成部分，这种力使物体具有远离曲线中心或旋转轴心的趋向。
The system can effectively and continuously measure the boom's rotation angle and tilt angle, and the force exerted on the supporting leg when there are certain loads on the boom.
该系统能够有效连续地测量车辆在吊臂或支臂承载一定载荷时的臂架旋转角度和倾斜角度以及支腿的受力情况。
However, the speed of the rotor rotation speed did not change the high magnetic field, or magnetic line of force will not be able to cut the copper.
不过此转子转动速度没有磁场变换之速度高，否则磁力线将不能为铜棒所切割。
Main factor that affects internal combustion engine's stability in whole (only internal combustion engine) is crankshaft's rotation inertia force.
而影响内燃机整体稳定性的主要因素(限于内燃机自身)就是曲轴的旋转惯性力。
The result shows that the Coriolis force induced by the rotation effect can change the discharge coefficient of the impingement holes.
计算结果表明，旋转作用所产生的哥氏力改变了冲击孔的流量系数值，转速越大，哥氏力作用就越明显。
The sails are mounted at an angle or are given a slight twist, so that the force of wind against them has two components, one of which, in the plane of the sails, causes rotation.
风叶有一个安装角或略有扭曲，因此可将吹来的风分解为两个分力，其中在风叶平面上的分力使风车旋转。
On the equator the deflection force of earth rotation which acts on the objects in non horizontal motion is not equal to zero.
赤道上作非水平面内运动的物体所受的地转偏向力并不等于零。
On the equator the deflection force of earth rotation which acts on the objects in non horizontal motion is not equal to zero.
赤道上作非水平面内运动的物体所受的地转偏向力并不等于零。
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