rarefaction

1. Yanqing County forms an orderly urban layout combining rarefaction and density and the garden city scene with both mountain and water and distinctive characteristics.
   延庆县城形成了错落有致、疏密结合的城市布局和山水相间、特色鲜明的园林城市风貌。
2. Hepatocyte swelling, cytoplasm rarefaction, spotty necrosis scattering in hepatic lobule and inflammatory cell infiltrating in portal duct areas.
   肝细胞肿胀，胞质疏松，小叶内散在点状坏死，汇管区有炎症细胞浸润。
3. Analysis of Capturing Calculation of Propagation Law about Rarefaction Wave in Gun
   膨胀波在火炮膛内传播规律的捕捉计算分析
4. Interior Ballistic Study and Launch Dynamic Analysis about Rarefaction Wave Propulsion Technology
   基于膨胀波发射技术的火炮内弹道与发射动力学分析
5. Vibration response analysis of the barrel based on new launch mechanism of rarefaction wave
   基于膨胀波新发射机理的身管振动响应分析
6. Steady characteristics of Micro Gas Journal Bearings Based on Rarefaction effect
   基于稀薄效应的微气体径向轴承稳态性能
7. This paper is concerned with the decay rates of the solution to the strong planar rarefaction waves for scalar conservation laws with degenerate viscosity in several space dimensions.
   本文主要研究高维空间中带有退化粘性的标量守恒律方程的光滑解的整体存在性，以及该解逼近强平面稀疏波的衰减率。
8. The asymptotic stability of the rarefaction wave has been established for the impermeable wall problem under small perturbation conditions and non-isothermal conditions.
   讨论了半空间中满足无渗透边界条件的一维黏性可压缩热传导流体的流动，给出了在小扰动和非等温条件下稀疏波的渐进稳定性。
9. This is called a rarefaction and is represented by widely spaced dots.
   这个区域称为稀疏区，并用疏散的小点表示。
10. Experimental Study on Applying VEGF for Preventing and Curing Bone Rarefaction after Serious Limbs Crush Injury
    应用VEGF防治肢体严重创伤后骨质疏松的实验研究
11. It carefully investigates thought background of proposing zero measure set, thought process of proposing asymptotic measure and rarefaction of proposing zero measure set, and influences on M.
    以法国数学家波莱尔的有关工作为核心，重点考察了他提出零测集的思想背景，提出零测集渐近测度和稀疏度的思想演变过程、思想方法及影响。
12. Principle Analysis and Model Research of New Low Recoil Rarefaction Wave Gun
    新型低后坐膨胀波火炮的原理分析及模型研究
13. Computation and Simulation of Rarefaction Wave Velocity and Travel in Inertial Breech RAVEN
    惯性炮尾式膨胀波火炮膨胀波速度和行程计算仿真
14. Vibration analysis of rarefaction wave launch device in moving mass
    移动质量作用下膨胀波发射装置的振动响应分析
15. Modeling and Simulation of Interior Ballistics of Rarefaction Wave Gun with Two-door Breechblock
    双门式炮闩膨胀波火炮内弹道建模与仿真
16. Effects of compressibility and rarefaction on gaseous flow and heat transfer in micro-channels
    压缩性和稀薄性对微通道气体流动换热的影响
17. Influences of plasma shielding and rarefaction wave on impulse coupling coefficient
    等离子体屏蔽和稀疏波对冲量耦合系数的影响
18. Processes of the unsteady transient phase transformation of water vapor and gas mixture induced by rarefaction waves and reflected rarefaction waves in a shock tube were studied experimentally.
    本文研究了激波管中稀疏波、反射稀疏波对水汽－空气混合气体作用的非定常瞬态相变过程。
19. In the situation of shock wave, the interaction caused by the situation of one shock wave catching up with another is qualitatively analyzed with the result of the wave form: reflection rarefaction and incidence shock wave.
    对急流冲击波的情况，从定性的角度分析了一个冲击波追赶上另一个冲击波后的相互作用，得到可能产生的波形，即反射的稀疏波和入射的冲击波。
20. Pure Rarefaction Wave and Rarefaction Shock Wave in Medium with CX-mode P ( v) Curve
    CX型P（v）线介质中的简单稀疏波和稀疏冲击波
21. One dimensional unsteady equations and Richtmyer Lax Wendroff scheme were used to study the influences of compression and rarefaction waves, combustion speed, flame out and length of tube to the pressure waves generated by steady propagating flames.
    从一维非定常守恒方程出发，本文用RichtmyerLaxWendroff格式研究了压缩波、稀疏波、燃烧速率、火焰熄灭和管道长度对管内运动火焰生成压力波的影响。
22. Numerical results show that the model can correctly simulate how shock waves accumulate and how rarefaction waves dissipate.
    数值计算表明，该模型可以很好地模拟冲击波的聚积和稀疏波的消散现象。
23. After gaseous detonation reflects on the right wall, the right-traveling rarefaction waves accelerate the reflected shock.
    气相爆轰波在右壁面反射后，右行稀疏波加速反射激波。
24. Rarefaction effect on supersonic flow fields in the transition from near continuum to near free-molecule flow is analyzed numerically.
    从近连续流到近自由分子流，计算分析超声速流场的稀薄效应。
25. After discuss-ing the conditions under which this approximation could be used, it is applied to study various 1-dimensional flows: continuous flows, rarefaction, compression waves and shock waves.
    在讨论了这种近似的适用条件后，分别用它就一维流的情况研究了连续流、稀疏波和压缩波以及激波等运动形态。
26. The secondary flow field includes complex vortices and shockwave series. It also has interaction by the boundary layer and shockwave, free shearing layer, shockwave, rarefaction wave and heavy gauge separation.
    二次喷射流场包含复杂的涡系结构和波系结构，还存在着边界层与激波的相互干扰、自由剪切层、激波、膨胀波和大尺寸分离。
27. The formulas of both reflection shock waves and rarefaction waves are given.
    文中分别给出反射冲击波和反射稀疏波两种情况的迭代收敛计算公式。
28. The spatio-temporal pattern gives the segregation of different traffic phases caused by the rarefaction wave and shock wave for a certain initial vehicle number.
    时空演化斑图给出了不同初始车辆数下由稀疏波和激波导致的不同交通相的分离。
29. And also the model can catch the shock wave and rarefaction wave which exist in traffic. 2.
    此模型能够合理反映交通中存在的激波和疏散波。
30. The results show that the rarefaction wave influences the premixed flame structure and propagation greatly.
    研究发现稀疏波对火焰结构和火焰传播过程产生重要影响。

noun

1. a decrease in the density of something
   1. a sound wave causes periodic rarefactions in its medium