1、

The light house has spiral stairs leading to the top.

塔有个盘旋上升通向塔顶的梯子.

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2、

Azimuthal magnetic field disturbances and spiral structure of the interplanetary magnetic field

日面方位磁场扰动和行星际磁场螺旋结构

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3、

The shape of ballistic reentry vehicle generally is axial symmetry, but its mass center may be departure from the axis of its symmetry.

弹道式再入飞行器一般为轴对称旋成体,但其质心可以偏离对称轴。

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4、

Use the principle of axis of rotation to calculate the conical cutter axis vector.

通过绕空间轴旋转原理计算锥形刀刀轴矢量。

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5、

Just I would have to sum the square of a distance to the axis of rotation.

只要计算到旋转轴距离的平方的总和。

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6、

Unbalance means the non-uniform distribution of the mass of a rotor about its axis of rotation.

不平衡是指转子相对于其旋转轴质量分布不均匀。

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7、

The axion is extremely lightweight with neither electric charge nor spin, so it hardly interacts with the universe's surrounding matter& that's if the particle even exists.

轴子是极其轻微的粒子,既没有电荷也不旋转,因此它几乎不与宇宙间任何周围的物质发生相互作用&当然是说如果这种粒子的确存在的话。

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8、
9、

Design and experimental investigation of contra rotating axial flow fan

轴流对旋风机的设计和实验研究

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10、

Flow measurements and analysis of rotating stall in an axial flow fan

轴流风扇旋转失速时的流场测量与分析

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11、

Application of the Loss Model in Performance Prediction of Contra-Rotating Axial Flow Fan

一种损失模型在对旋型轴流通风机特性预估中的应用

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12、

A Method for Estimating the Efficiency of Counter rotating Axial Flow Fan

一种对旋式轴流风机的效率估算方法

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13、

Study on Hub Ratio Optimization Design of Counter-rotating Axial Flow Fan

对旋轴流通风机最优轮毂比的研究

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14、

Study on Hub Structural Optimization Design of Counter-rotating Axial Flow Fan

对旋式轴流风机的轮毂结构优化设计研究

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15、

Taper support rib usually two or three cam roller contacts, in order to edge into the axis of rotation to be sent to the uniform output shaft.

锥度支撑肋通常与两个或三个凸轮滚子接触,以便入力轴的旋转可均匀地传送到出力轴。

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16、

Because the core current is somewhat symmetrical around the axis of rotation, the associated magnetic field is similar to that of a bar magnet.

因为地核流在旋转轴周围存在着一些对称,所以相关的磁场与棒磁铁的磁场相似。

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17、

A spherical roller bearing contains two rows of barrel rollers, their axes are inclined to the axis of rotation of the bearing.

球面滚子轴承包含两行辊筒,他们倾向于轴的轴承旋转轴。

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18、

More precisely curl v measures twice the angular velocity, or maybe I should say the angular velocity vector because it also includes the axis of rotation.

更精确地,curv,v值为角速度的2倍,或许我应该说,角速度向量,因为它带有旋转轴。

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19、

The rotated parabolic equation method was presented to compute the bistatic radar cross section ( RCS ) .

并提出了旋转抛物线方程算法,实现了目标任意角度雷达散射截面的 快速计算.

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20、

Xuan Sefa a cone-shaped pieces of the hoist and around the center line perpendicular to the axis of rotation pipeline, completed the hoist valve action.

的启闭件呈锥形,并绕垂直于管道中心线的轴线旋转,完成阀门的启闭动作。

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