拉拔过程中筋土上下界面并不对称，下界面扰动范围比上界面大；
The upper and lower geogrid-soil interfaces are not symmetrical such that the disturbed area of lower interface is higher than that of upper interface.
本文还探讨了底板岩层的应力分布和开采造成的底板岩层扰动范围。
Stress distribution of the floor rock mass and the range of disturbance in floor rock affected by mining are discussed.
基于质子交换膜燃料电池电堆的能量守恒，建立了在大范围的负载扰动下电池电堆温度的非线性模型。
Based on the energy conversation of proton exchange membrane fuel cell (PEMFC) stack, the nonlinear temperature model of PEMFC stack with the large range of disturbances is developed.
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