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the magnetic fluid
相关语句
  磁性液体
     Motion State Analysis and Seal Ability Study on the Magnetic Fluid Seal of Reciprocating Shaft
     往复轴磁性液体密封耐压能力及密封间隙内磁性液体运动状态的分析与研究(英文)
短句来源
     The magnetic fluid was prepared using the ultrafine Co-Fe 3O 4 particulate as the group material.
     制备了以超细 Co、Fe3O4微粒为基体材料的磁性液体
短句来源
     Magnetic field distributions of the magnetic fluid sealing devices,with the structure of three slots and four pole teeth,were simulated with the finite element software package ANSYS.
     介绍了磁性液体密封的理论,并应用ANSYS有限元分析软件对一个三槽四齿密封结构进行磁场有限元分析,并进一步对极齿尺寸进行优化设计。
短句来源
     The magnetic fluid was prepared using Fe 3O 4 particulates which were prepared by chemical precipitation and suspended in a carrier liquid.
     化学沉淀法制备的 Fe3O4 微粒经表面活性剂包覆后悬浮于载液中得到了磁性液体
短句来源
     The magnetic fluid will have a broad application prospect.
     磁性液体将会有它广阔的应用前景 .
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  “the magnetic fluid”译为未确定词的双语例句
     Study and design on the magnetic fluid grinding apparatus used for Si_3N_4 ceramic balls
     Si_3N_4陶瓷滚珠的磁流体研磨装置研究与设计
短句来源
     The value of saturation magnetization of the magnetic fluid is 1.85 kA/m.
     测定了磁流体的饱和磁化强度,其值为1.85kA/m.
短句来源
     Water-based Fe_ 3O_ 4 magnetic fluid was prepared by chemical co-precipitation in the presence of a surfactant PEG-4000. The effects of preparation conditions such as pH value, n(Fe 3+)/n(Fe 2+), temperature and PEG mass concentration on the formation and the stability of the magnetic fluid were investigated.
     以聚乙二醇(PEG4000)为表面活性剂,通过化学共沉淀法制备水基Fe3O4磁流体,探讨了pH值、Fe3+与Fe2+摩尔比、温度、聚乙二醇质量浓度对磁流体形成和稳定性的影响。
短句来源
     on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid’s larger magnetic permeability.
     另一方面由于力矩马达气隙中磁导率的提高,使气隙中的磁通量增大,力矩马达的磁路效率和输出扭矩将增大,因此可以提高力矩马达的固有频率和伺服阀的响应速度。
短句来源
     The magnetic fluid grinding apparatus used for Si 3N 4 was studied and designed. The main parameters of the apparatus were analyed and discussed.
     研究并设计了应用于研磨Si3N4 陶瓷滚珠的磁流体研磨试验装置 ,对装置中的主要参数进行了分析和讨论。
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  相似匹配句对
     Magnetic Liquid
     磁性液体
短句来源
     Magnetic Screw
     磁力丝杠
短句来源
     Application of Magnetic Fluid
     磁性液体的应用
短句来源
     THE DEVELOPMENT OF MAGNETIC MATERIALS
     磁性材料进展
短句来源
     Magnetic Fluid and its Application
     磁流体及其应用
短句来源
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  the magnetic fluid
The results show that both the supercritical stability and the subcritical instability still can be found in the magnetic fluid film flow system.
      
Results show that the magnetic fluid can selectively adsorb 2-hydroxyphenol from the mixture, whereas the adsorption of 2-nitrophenol is insignificant.
      
The magnetic effects of the magnetic fluid are investigated by the magnetic coefficient γ.
      
By taking into account the couple stresses due to the microstructure additives and the magnetic effects due to the magnetization of the magnetic fluid, modified Reynolds equation is obtained.
      
The magnetic fluid is modeled with "liquid-state" and "magnetic" subsystems described using the classical and quantum statistics methods respectively.
      
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The magnetic fluid in the solar convection zone tends to be driven to float by the magnetic buoyancy of the toroidal magnetic field, which is produced by the ω-effect of the solar dynamo. Consequently, phenomena of active regions in bipolar magnetic fields of sunspots will be formed on the surface of the sun.We see that the dimension of a buoyant magnetic fluid-mass which produces bipolar sunspots, may be large enough as to be comparable to the supergranulation, and meanwhile,...

The magnetic fluid in the solar convection zone tends to be driven to float by the magnetic buoyancy of the toroidal magnetic field, which is produced by the ω-effect of the solar dynamo. Consequently, phenomena of active regions in bipolar magnetic fields of sunspots will be formed on the surface of the sun.We see that the dimension of a buoyant magnetic fluid-mass which produces bipolar sunspots, may be large enough as to be comparable to the supergranulation, and meanwhile, that turbulence in this mass may probably exist as indicated by the decaying time of sunspot magnetic fields. Therefore, it is possible for us to describe the buoyant process of a magnetic fluid-mass as a motion of mean flow. Since a solar radial gradient of turbulent magnetic diffusivity is there in the solar convection zone (Stix, 1976, Fig. 1), the difference of turbulent magnetic diffusivity across the boundary of the fluid mass will grow up with the increasing height of elevation. Thus, a large gradient of turbulent magnetic diffusivity comes to exist at the boundary of this mass during it striving its way up.Generally speaking, the elevating magnetic fluid will form an irregularly shaped fluid mass of convective material. Our purpose is only to study the magnetic characteristics at the boundary of the fluid mass when it traversed the toroidal field. Therefore, we discuss merely an idealized model of spherical fluid mass with average radius γ0 and equilibrium elevating velocity vc, neglecting other fine characteristics of irregular shaping of the mass and its possible inner circulations etc.The magnetic Reynolds number of the elevating process for a fluid mass is Rm=vcγ0/η, here η is the turbulent magnetic diffusivity. Our result is for the motion with small magnetic Reynolds number, Rm<1. We have noticed from the well-known induction equation that the toroidal magnetic field is to be disturbed by the striking gradient of the turbulent magnetic diffusivity across the boundary of the fluid mass after its passing over. We develop the induction equation in the coordinate system moving with the elevating fluid mass. Taking the total magnetic field as B', we have B' = B* + B, here B* is the toroidal magnetic field and B is the additional magnetic field induced by the disturbance of the fluid mass. Substituting B'=B* + it into the induction equation, we get equation (3.5) which describes the magnetic field B. By use of the condition of cylindrical symmetry in this problem, we solve equation ' (3.5) finally to achieve formula (3.22). It is clearly shown that a magnetic flux ring has formed around the surface of the fluid mass (Pig. 4). The final result is that two oppositely polarized magnetic regions will emerge on the surface of the sun as the magnetic ring is brought to the top of solar convection zone by the elevating fluid mass. According to this reason, we attempt to explain the phenomena why the bipolar magnetic fields of sunspots are concentrated in small bundles of high field strength. By means of the characteristics of the magnetic ring and toroidal magnetic field, other characteristics of bipolar magnetic field of sunspots may also be explained extensively.''

在太阳对流层内,由于ω-效应产生了很强的纬向磁场,它的磁浮力引起了磁流体的上浮,在太阳表面造成了黑子双极磁场等活动区的现象。本文考虑了在磁流团上浮后,由于在太阳对流层内存在湍流磁扩散率的垂直梯度,因而在磁流团内外的磁扩散率之差要随磁流团上升距离的增加而增大,以致在磁流团表面形成了巨大的磁扩散率的梯度,从磁感应方程中可以看到,这一梯度将扰动纬向磁场,结果在磁流团表面形成了磁环,它随磁流团浮升到对流层顶,在太阳表面呈现出两个极性相反的磁区。本文企图以此来说明黑子双极磁场密集性原因的尝试。

As soon as a magnetic flux ring is formed around the surface of the rising fluid mass among the toroidal magnetic field in the solar convection zone (Zhou Daoqi, 1981), along with it the ampere's force is formed. It may be seen that the contraction, deformation and breakdown of the fluid mass take place under the effects of the ampere's force (magnetic ring force). On the basis of its dynarnical effects, we attempt to explain the cause of the "5-configuration" and "A-Configuration" sunspot grounps, the phenomena...

As soon as a magnetic flux ring is formed around the surface of the rising fluid mass among the toroidal magnetic field in the solar convection zone (Zhou Daoqi, 1981), along with it the ampere's force is formed. It may be seen that the contraction, deformation and breakdown of the fluid mass take place under the effects of the ampere's force (magnetic ring force). On the basis of its dynarnical effects, we attempt to explain the cause of the "5-configuration" and "A-Configuration" sunspot grounps, the phenomena of the filaments and material falling down above the sunspot. The dynamical effects of the sunspot magnetic flux ring is the main reason for the magnetic fluid motion above AR. The magnetic fluid motion is characterized by having two vertical circulation streams on both sides of the symmetrical plane which is the zero plane of the longitudinal magnetic field (B11 = o)

在太阳对流层内的纬向磁场中,当围绕上浮流团的表面产生了磁环后(周道祺,1981),同时也产生了磁环的安培力,在这安培力(磁环力)的作用下,流团要发生收缩、形变和破裂。基于它的力学特征,我们企图以此来解释“δ-型”和“A-型”结构黑子群的形成,以及暗条和黑子上空下落气流等现象。磁环的力学特性是造成活动区上空磁流体运动的主要原因,它是以纵向磁场为零的中性面为对称的两个垂直环流为特征的。

As soon as the magnetic flux ring was formed around the surface of the rising fluid mass among the toroidal magnetic field in the solar convection zone (Zhou Daoqi, 1981), along with it the ampere's force was formed. It may be seen that the contraction, deformation and break of the fluid mass take place under the effect of the ampere's force (magnetic ring force). On the basis of its dynamical effects, we attempt to explain the cause of the "δ-configuration" and "A-configuration" sunspot grounps, the phenomena...

As soon as the magnetic flux ring was formed around the surface of the rising fluid mass among the toroidal magnetic field in the solar convection zone (Zhou Daoqi, 1981), along with it the ampere's force was formed. It may be seen that the contraction, deformation and break of the fluid mass take place under the effect of the ampere's force (magnetic ring force). On the basis of its dynamical effects, we attempt to explain the cause of the "δ-configuration" and "A-configuration" sunspot grounps, the phenomena of the filaments and material falling down above the sunspot. The dynamical effects of the sunspot magnetic flux Ring is the reason for magnetic fluid motion above AR. The characteristic of the magnetic fluid motion is two vertical circulations on both sides of the symmetrical plane which is the zero plane of the longitudinal magnetic field (B_(11)=0).

在太阳对流层内的纬向磁场中,在围绕上浮流团的表面产生磁环的同时,也产生了磁环的安培力。在这安培力的作用下,流团发生收缩、形变和破裂。本文根据它的力学特征来解释“δ-型”和“A-型”结构黑子群的形成,以及暗条和黑子上空的下落气流等现象。磁环的力学特性是造成活动区上空磁流体运动的原因,它是以纵向磁场为零(B_(11)=0)的中性面为对称面的两个垂直环流为特征的。

 
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