Prevenient study have proved that micro pressure wave value is proportional to the pressure gradient which the compression wave arrive the tunnel exports.
以前的研究已经证明，微压波的大小和压缩波到达隧道出口时的压力梯度大致成正比，所以当前所采用的微压波减缓措施的基本指导原则主要是减小压缩波的压力梯度。
参考来源 - 高速铁路隧道竖井形状和面积对气动效应的影响研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A compression wave in decelerating flow steepens.
压缩波在减速流中变陡。
The supplementary restraint equation at the compression wave front is obtained by use of the second critical condition.
由第二个临界条件导出压缩波前的屈曲变形约束方程。
The research discovers that compression wave quality factor of the sands in desert surface increases as the buried depth and the compression wave velocity's increase.
研究表明：沙漠地区表层沙纵波品质因子随埋深、纵波速度的增加而增大。
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