1) micro-pressure wave
微压波
1.
What was investigated involved characteristics of micro-pressure wave near tunnel exit as well.
基于一维可压缩非定常空气流动理论,利用数值方法计算了高速列车进入隧道引起入口压缩波在不同轨道道床(板式道床与碎石道床)隧道内的传播情况,以及在隧道出口附近形成的微压波特征。
2.
In order to develop sound absorption material which can reduce tunnel exports Micro-pressure wave and to make numerical simulation of reduce effects,the paper adopts three-dimensional compressible unsteady flow model,straggling three-dimensional Navier-stokes equation by finite volume method,and the near wall functions is applied to deal with the wall of tunnels.
为了开发能降低隧道出口微压波的吸音材料,对多孔材料隧道壁面降低压缩波和出口微压波的效果进行了详细的数值模拟;采用三维可压缩非定常流动模型,通过有限体积法对三维Navier-stokes方程进行离散;对隧道壁面采用近壁面函数来处理,时间采用预处理二阶精度步后差分格式进行离散。
3.
When high-speed train entering tunnel,compression wave and micro-pressure wave will be created,which will result in the pressure fluctuation in carriages and noises at the tunnel exit.
高速列车在进出隧道时,会形成压缩波和微压波,引起车厢内压力变化并在隧道出口形成噪声,对乘客及环境造成影响。
2) Microwave hot-press
微波热压
3) high-pressure microwave
高压微波
1.
The p-nitro-ethyl benzoate was fastly synthesized with the technique of high-pressure microwave, and sodium bisulfate monohydrate as catalyst.
以均匀设计安排实验 ,在一水合硫酸氢钠催化下 ,利用高压微波技术 ,快速合成了对硝基苯甲酸乙酯。
4) micro-pressure wave
微气压波
1.
Influence of hood on micro-pressure wave
缓冲结构对隧道口微气压波的影响
2.
Using the ground and vehicular test systems,many parameters such as pressure change,wind caused by train,micro-pressure wave and vibration acceleration of the wall of tunnel were tested.
利用地面和车载测试系统,对列车车体表面、车厢内部、隧道壁面空气压力变化、隧道内列车风、隧道口微气压波和隧道壁面振动加速度等参数进行测试。
3.
The micro-pressure wave generated by high-speed trains passing tunnels or enclosed noise barriers is one of the disadvantages.
高速铁路对环境的噪声污染是个不可忽略的问题,列车高速通过隧道或封闭声屏障时产生的微气压波就是其中危害之一,它严重地影响着铁路附近居民的正常生活。
补充资料：冲击波超压与动压