Question

求翻译下面文章 谢谢

If the initial position of a particle falls on the centerline of
the channel, the particle always stays on the centerline and
the velocity at stenosis throat is much larger than that in the
flat tube as shown in Fig. 4. The case is more complex when
the particle is positioned away from the centerline initially.
The snapshots of the positions and orientations of the particle
are displayed in Fig. 5 for the initial position of the particle
2d above the centerline. Near the protuberance the particle
moves to the centerline of the tube. However, the particle
never arrives at the centerline. After passing the stenosis, the
particle migrates to the same direction of the initial position,
i.e., the particle migrates up since the initial position of the
particle is above the centerline. This is consistent with the
Segre´-Silberberg effect @7# observed in flat pipe flow that
neutrally buoyant cylinders migrate laterally away from both
the wall and the centerline and reach a certain lateral equilibrium
position. Figure 6 shows the velocity and angular
velocity of the particle with respect to t and x. The x component
of the velocity at stenosis throat is about five times of
that in the flat tube. The y component of the velocity changes
its direction from upstream to downstream of the stenosis.
The angular velocity at the throat is not so smooth as that of
the x or y component of the velocity. This results from that
the particle sometimes touches the upper protuberance near
the stenosis throat like a skier. When the particle touches the
upper protuberance, there is friction on the surface between
the upper protuberance and the particle. Although the friction
is very small, it gives a relatively large torque since it acts on
the surface of the particle and is perpendicular to the connection
line between the contact point and the center of the
particle. Figure 7 shows the streamline in the tube.

Answer 1

If the initial position of a particle falls on the centerline of
the channel, the particle always stays on the centerline and
the velocity at stenosis throat is much larger than that in the
flat tube as shown in Fig. 4. The case is more complex when
the particle is positioned away from the centerline initially.
The snapshots of the positions and orientations of the particle
are displayed in Fig. 5 for the initial position of the particle
2d above the centerline. Near the protuberance the particle
moves to the centerline of the tube. However, the particle
never arrives at the centerline. After passing the stenosis, the
particle migrates to the same direction of the initial position,
i.e., the particle migrates up since the initial position of the
particle is above the centerline. This is consistent with the
Segre´-Silberberg effect @7# observed in flat pipe flow that
neutrally buoyant cylinders migrate laterally away from both
the wall and the centerline and reach a certain lateral equilibrium
position. Figure 6 shows the velocity and angular
velocity of the particle with respect to t and x. The x component
of the velocity at stenosis throat is about five times of
that in the flat tube. The y component of the velocity changes
its direction from upstream to downstream of the stenosis.
The angular velocity at the throat is not so smooth as that of
the x or y component of the velocity. This results from that
the particle sometimes touches the upper protuberance near
the stenosis throat like a skier. When the particle touches the
upper protuberance, there is friction on the surface between
the upper protuberance and the particle. Although the friction
is very small, it gives a relatively large torque since it acts on
the surface of the particle and is perpendicular to the connection
line between the contact point and the center of the
particle. Figure 7 shows the streamline in the tube.If the initial position of a particle falls on the centerline of
the channel, the particle always stays on the centerline and
the velocity at stenosis throat is much larger than that in the
flat tube as shown in Fig. 4. The case is more complex when
the particle is positioned away from the centerline initially.
The snapshots of the positions and orientations of the particle
are displayed in Fig. 5 for the initial position of the particle
2d above the centerline. Near the protuberance the particle
moves to the centerline of the tube. However, the particle
never arrives at the centerline. After passing the stenosis, the
particle migrates to the same direction of the initial position,
i.e., the particle migrates up since the initial position of the
particle is above the centerline. This is consistent with the
Segre´-Silberberg effect @7# observed in flat pipe flow that
neutrally buoyant cylinders migrate laterally away from both
the wall and the centerline and reach a certain lateral equilibrium
position. Figure 6 shows the velocity and angular
velocity of the particle with respect to t and x. The x component
of the velocity at stenosis throat is about five times of
that in the flat tube. The y component of the velocity changes
its direction from upstream to downstream of the stenosis.
The angular velocity at the throat is not so smooth as that of
the x or y component of the velocity. This results from that
the particle sometimes touches the upper protuberance near
the stenosis throat like a skier. When the particle touches the
upper protuberance, there is friction on the surface between
the upper protuberance and the particle. Although the friction
is very small, it gives a relatively large torque since it acts on
the surface of the particle and is perpendicular to the connection
line between the contact point and the center of the
particle. Figure 7 shows the streamline in the tube.自动检测中英文中译英英译中百度翻译.
翻译结果（英 > 中）复制结果

If the initial position of a particle falls on the centerline of如果初始粒子的位置落在中心线the channel, the particle always stays on the centerline and该频道，粒子始终停留在中心线the velocity at stenosis throat is much larger than that in the速度在狭窄的喉咙，要远远大于在flat tube as shown in Fig. 4. The case is more complex when扁管，如图4所示。情况比较复杂时the particle is positioned away from the centerline initially.粒子的位置离中心线开始。The snapshots of the positions and orientations of the particle快照的位置和方向的粒子are displayed in Fig. 5 for the initial position of the particle显示在图5的初始位置的粒子2d above the centerline. Near the protuberance the particle二维以上的中心线。附近的颗粒突起moves to the centerline of the tube. However, the particle移动到管中心线。然而，粒子never arrives at the centerline. After passing the stenosis, the不到中心线。经过狭窄，其particle migrates to the same direction of the initial position,粒子迁移到同一方向的初始位置，i.e., the particle migrates up since the initial position of the例如，粒子迁移从初始位置的particle is above the centerline. This is consistent with the粒子的中心线上方。这是符合Segre´-Silberberg effect @7# observed in flat pipe flow that塞格雷´-西尔伯贝格效应@ 7#观察扁管流neutrally buoyant cylinders migrate laterally away from both中性浮力气瓶从横向迁移the wall and the centerline and reach a certain lateral equilibrium墙中心线，达到一定的横向平衡position. Figure 6 shows the velocity and angular位置。图6显示的速度和角velocity of the particle with respect to t and x. The x component粒子的速度就与十×组件of the velocity at stenosis throat is about five times of的速度在狭窄的喉咙，大约是五倍that in the flat tube. The y component of the velocity changes在扁管。该部分的速度变化its direction from upstream to downstream of the stenosis.它的方向，从上游到下游狭窄。The angular velocity at the throat is not so smooth as that of角速度在喉咙不那么顺利，the x or y component of the velocity. This results from that×或部分的速度。这一结果，the particle sometimes touches the upper protuberance near粒子有时触动上突起附近the stenosis throat like a skier. When the particle touches the狭窄的喉咙像滑雪者。当粒子接触upper protuberance, there is friction on the surface between上突起，有摩擦表面之间the upper protuberance and the particle. Although the friction上突起和粒子。虽然摩擦is very small, it gives a relatively large torque since it acts on很小，它给出了一个比较大的扭矩，因为它的行为the surface of the particle and is perpendicular to the connection粒子的表面，并垂直于连接line between the contact point and the center of the线之间的接触点和中心的particle. Figure 7 shows the streamline in the tube.粒子。图7显示了流线管。

追问

求人工翻译 不要工具翻译啊 工具不准的 哪位大侠愿意今晚翻译出来 200财富值！文中的 图片在这里！

Answer 2

如果初始粒子的位置落在中心线
该频道，粒子始终停留在中心线
速度在狭窄的喉咙，要远远大于在
扁管，如图4所示。情况比较复杂时
粒子的位置离中心线开始。
快照的位置和方向的粒子
显示在图5的初始位置的粒子
二维以上的中心线。附近的颗粒突起
移动到管中心线。然而，粒子
不到中心线。经过狭窄，其
粒子迁移到同一方向的初始位置，
例如，粒子迁移从初始位置的
粒子的中心线上方。这是符合
塞格雷´-西尔伯贝格效应@ 7#观察扁管流
中性浮力气瓶从横向迁移
墙中心线，达到一定的横向平衡
位置。图6显示的速度和角
粒子的速度就与十×组件
的速度在狭窄的喉咙，大约是五倍
在扁管。该部分的速度变化
它的方向，从上游到下游狭窄。
角速度在喉咙不那么顺利，
×或部分的速度。这一结果，
粒子有时触动上突起附近
狭窄的喉咙像滑雪者。当粒子接触
上突起，有摩擦表面之间
上突起和粒子。虽然摩擦
很小，它给出了一个比较大的扭矩，因为它的行为
粒子的表面，并垂直于连接
线之间的接触点和中心的
粒子。图7显示了流线管。

不知道对不对·······

追问

用工具翻译的 有问题哦

追答

好长·······

Answer 3

如果初始位置粒子落在中心线
英吉利海峡,粒子总是停留在中心线,
速度在狭窄的喉咙比那个
扁管,如图4。情况就比较复杂了
粒子位置远离中心线开始。
的快照的位置与方向的粒子
显示在图5为初始粒子位置吗
2 d以上中心线。朝鲜半岛附近的粒子
移动到中线的管。然而,粒子
从未到达中心线。经过那狭窄的
粒子迁移方向相同的初始位置,
例如,粒子迁移起初始位置
粒子在中心线。这是一致的
这部大部头多半-Silberberg效果观察@7´#在平坦的管道流动
以中立的态度,浮力钢瓶横向迁移远离两者
墙和中心线,达到一定的横向平衡
位置。图6显示速度和角
速度的粒子就t,x。x成分
速度在狭窄的嗓子的五倍
在扁管。y部件的流速的变化
从上游至下游及其研究方向的狭窄。
在喉咙的角速度不总是那么平坦的
x或y染色体组成的速度。此结果,
粒子有时触动上凸起的日子近了
这个狭窄的喉咙像滑雪。当粒子触动了
上凸起,哪儿就有磨擦表面之间
上面的凸起和粒子。虽然摩擦
很小,它提供一个相对较大的转矩,因为它的行为吗
粒子的表面和垂直于连接
在接触点之间的界限和中心
粒子。图7显示在管内的流线。

祝你天天开心

Answer 4

If the initial position of a particle falls on the centerline of the channel, the particle always stays on the centerline and the velocity at stenosis throat is much larger than that in the flat tube as shown in Fig. 4. The case is more complex when the particle is positioned away from the centerline initially.
The snapshots of the positions and orientations of the particle are displayed in Fig. 5 for the initial position of the particle 2d above the centerline. Near the protuberance the particle moves to the centerline of the tube. However, the particle never arrives at the centerline. After passing the stenosis, the particle migrates to the same direction of the initial position, i.e., the particle migrates up since the initial position of the particle is above the centerline. This is consistent with the Segre´-Silberberg effect @7# observed in flat pipe flow that neutrally buoyant cylinders migrate laterally away from both the wall and the centerline and reach a certain lateral equilibrium position. Figure 6 shows the velocity and angularvelocity of the particle with respect to t and x. The x component of the velocity at stenosis throat is about five times of that in the flat tube. The y component of the velocity changes its direction from upstream to downstream of the stenosis.
The angular velocity at the throat is not so smooth as that of the x or y component of the velocity. This results from that the particle sometimes touches the upper protuberance near the stenosis throat like a skier. When the particle touches the upper protuberance, there is friction on the surface between the upper protuberance and the particle. Although the friction is very small, it gives a relatively large torque since it acts on the surface of the particle and is perpendicular to the connection line between the contact point and the center of the particle. Figure 7 shows the streamline in the tube.

追问

我要翻译成汉语啊

追答

如果粒子的初始位置落在轨道的中线，粒子始终保持在中线位置并且在波峰的速度比波谷大得多入图4所示， .当粒子远离当初轨道中线的情况更加复杂， 粒子的位置和方向的快照如图5所示在二维图像的中线之上.波峰处示粒子运动到管的中线位置 ,当通过波谷之后 ，粒子将以初始方向相同的方向运动,也就是，当粒子的初始位置在中线以上时开始运动.这与 Segre-Silberberg效应(即颗粒在Poiseuille流中的稳定位置既不在管道中心也不在管壁,而是在管道中心和管壁之间的某一位置)是相一致的 .图6显示的是速度和角速度的关系分别用t和x代替 . 其中波峰的速度约十波谷速度的5倍. Y显示了速度在狭窄处从上游到下游时变化了方向.而在狭窄处的角速度就不如x或y分量表示的速度那样圆润了. 这将导致粒子在触及狭窄处的突起的时候如滑雪般骤降，当粒子接触突出物时，二者之间存在阻力. 尽管阻力非常小但他提供了相当大的扭矩，因为它作用于颗粒表面并且垂直于接触点和粒子的中心的连接线. 图7显示了管中简图
真的是自己翻译的 不晓得正确与否 因为涉及专业知识 还请见谅

Answer 5

不知道