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bubble wall
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  泡壁
     In the case of setting the mass ratio of HMSPP to PP at 7 ∶93, the density of the foam article reached 0.12 g/cm3 and, the article featured uniform dimension of bubble, thin bubble wall and trim appearance.
     当m(HMSPP)/m(PP)为7∶93时,发泡制品的密度约为0.12g/cm3,所得制品泡孔尺寸均匀、泡壁薄、外观规整。
短句来源
     the bubble wall oscillat-ing amplitude is concerned with varying amplitude, frequency and width of exponentialpulse of pressure field.
     泡壁振荡幅度与压力场变化幅度、颇率及指数脉冲宽度有关。
短句来源
  “bubble wall”译为未确定词的双语例句
     A mathematical model of bubble collapse in the finite depth liquid owing to initial bubble wall motion is established.
     针对球形气泡在有限深度液体内的运动过程,建立了气泡壁初始运动导致气泡破碎的数理模型.
短句来源
     In this paper the Gilmore's equation for the fluid compressibility is employedas the mathematical model for bubble wall motion,and Gill's method is also used tocompile the programs to solve initial value problems of nonlinear differential equations.
     本文采用计及液体可压缩性的Gilmore方程作为气泡壁面运动的数学模型,并用吉尔方法建立求解非线性常微方程组初值问题的计算程序。
短句来源
     We have derived a dynamical equation of shape instability for a spherical bubble,where water vapor evaporation and condensation at a sonoluminescencing bubble wall are considered.
     在考虑水蒸气凝结与水的蒸发过程的基础上 ,推导了球形气泡形状稳定性方程 .
短句来源
     Numerical simulation shows that a negative pressure region appears in the vicinity of the bubble wall for those bubbles with a larger maximum radius, when the bubble is in its compressed phase, and which makes the bubble in the position of unstable equilibrium.
     数值计算发现当气泡处于压缩相 ,那些最大半径比较大的气泡 ,其外围紧邻气泡壁处出现负压区 ,这将使气泡在这段时间处于力的非稳定平衡点 .
短句来源
     A correlation to predict the critical bubble collapse is proposed under the condition of the zero initial bubble wall moving velocity and compared with the results in the existing references.
     通过分析得到了气泡壁初始速度为0时的临界破碎准则预测式,并与其他文献的结果进行了比较.
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  相似匹配句对
     Wall.
     Wall.
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     THE WALL
     迷墙
短句来源
     Influences of a Plane Wall on Bubble Motion
     平壁对空泡运动的影响研究
短句来源
     Crannies Controlment of Plastered Bubble-Concrete-Brick Wall
     加气混凝土墙体抹灰层空裂的控制措施
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     Bubble Chamber
     气泡室
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  bubble wall
The size of the bubble is determined by a balance between the zero-point energy of the electron, the surface energy of the bubble wall, and the polarization energy of the helium in the electric field of the electron.
      
We show that if the electron is optically excited from the 1s to the 1p state, the bubble wall will be set into motion, and that the inertia of the liquid surrounding the bubble can be sufficient to lead to the break-up of the bubble into two pieces.
      
Numerical analysis is performed of the bubble dynamics and acoustic losses (the profile and amplitude of the radiation wave generated on the bubble wall from the side of the liquid).
      
It is shown that small (:about 1%) additives of an incondensable gas lead to a considerable decrease in mass transfer on the bubble wall.
      
It is found that at the stage of collapse, intense condensation occurs on the bubble wall, which results in a significant (more than 15‐fold) decrease in bubble mass and an increase in pressure (to 105 atm) and temperature (to 104 K(.
      
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The formation of hard bubbles by single-pulse bias field in epitaxial garnet films was investigated in some detail. It was verified by experiments and calculations that, in general, VBL in hard bubble walls are not generated by the way that one Bloch line pair is produced per pulse. The dependence of the hardening of soft domain segments on their movements was revealed by means of the method of double exposure photography. Two kinds of favorite movements for hard bubble formation were discovered...

The formation of hard bubbles by single-pulse bias field in epitaxial garnet films was investigated in some detail. It was verified by experiments and calculations that, in general, VBL in hard bubble walls are not generated by the way that one Bloch line pair is produced per pulse. The dependence of the hardening of soft domain segments on their movements was revealed by means of the method of double exposure photography. Two kinds of favorite movements for hard bubble formation were discovered and the physical meaning of the" demarcation field for soft and hard bubble formation" H_[b] was elucidated.

实验研究了一次脉冲偏场作用下外延石榴石膜硬磁泡的形成规律。通过实验和计算,证明了硬泡畴壁中同号的VBL一般地说并非一个脉冲产生一对。通过双重曝光照相法揭示出软畴段的硬化与畴段运动形式的关系,发现了最适于硬泡形成的两种运动形式,并阐明了“软硬磁泡形成的分界场”H_([b])的物理意义。

High-speed photography is an effective tool for the study of cavitation phenomenon. The effects of fluid viscosity,sediment concentration and fluid velocity on bubble collapse process as generated by electronic sparks was investigated. Main conclusions are:the viscosity of fluid tends to slow down and then prolong the process of collapse and growth ; effect of sediment concentration on bubble collapse and growth is similar to that of fluid viscosity; the fluid velocity tends to slow down the process of bubble...

High-speed photography is an effective tool for the study of cavitation phenomenon. The effects of fluid viscosity,sediment concentration and fluid velocity on bubble collapse process as generated by electronic sparks was investigated. Main conclusions are:the viscosity of fluid tends to slow down and then prolong the process of collapse and growth ; effect of sediment concentration on bubble collapse and growth is similar to that of fluid viscosity; the fluid velocity tends to slow down the process of bubble growth but speed up the process of collapse ; the high-velocity microjet is directed to the wall when the bubble collapses near the wall ; but in the case of a highly resilient wall or free surface, the direction of high-velocity microjet will move away from the wall or the free surface; in the process of bubble collapse, the bubble wall motion would induce the motion of sediments around the bubble. Representative high-speed photogrophs are given

高速摄影技术是研究空化现象的有力工具。文中利用高速摄影技术研究了液体粘性、 含沙量及流速对电火花空泡溃灭过程的影响。主要结论有:液体粘性使空泡溃灭过程变 缓;含沙量的影响类似于液体粘性:流速使空泡膨胀过程变缓但使溃灭过程加速;近固壁 处空泡溃灭时微射应朝向壁画,而当壁面具有高弹性或在自由表面附近溃灭时则微射流将 背离壁面;空泡溃灭时将使泡周围的固体颗粒产生运动。文中附有典型高速摄影照片。

Employing the Rayleigh's method, the collapse of a vaporous bubble in an incompressible liquid with surface tension is analysed. The expressions of time versus radius, bubble-wall velocity and pressure developed at collapse are thus introduced.

本文在Rayleigh方法的基础上,对具有表面张力含汽型空泡的溃灭进行了分析.导出空泡溃灭时空泡半径、泡壁速度及溃灭压力与时间的函数关系,并由此给出速度场及压力场的数值解.

 
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