在时间离散 方面，MODFLOW引进了应力期(Stress Period)的概 念，把整个模拟时段分成若干个应力期，每个应力 期又分为若干个时间段，同一应力期，各时间段既 可以等步长，也可以按一个规...
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该夹具产生110％的负载， 在猎户座EFT-1期间引起的八种的不同类型的应力。
The fixture produced 110 percent of the load caused by eight different types of stress Orion will experience during EFT-1.
用有限元数值方法计算了在心室舒张期瓣膜关闭瞬时峰值跨瓣压差作用下的静态应力分布。
In this paper the static stress distribution of closed valve during diastole under the peak across valve pressure difference is analyzed with nonlinear finite element method.
预应力的不稳定变化关系到工程运营期的安全性，因而，研究锚固力的波动变化显得非常重要。
Instability variation of prestressed force will influence the security of the project, so it is very important to study the fluctuating variation of the force.
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