Sandwiched rock between twin closely spaced tunnels is in complicated and three-dimensional stress state.
小净距隧道的中间夹岩处于复杂的三维受力状态。
Objective To study artificial lumbar intervertebral disc three-dimensional finite element model and its stress state.
目的研究人工腰椎间盘三维有限元模型的建立及其应力分布。
It indicates that stress state affects the close ways of voids and three-dimensional compressive stress state is the best one for healing the internal voids of object.
条件表明应力状态影响空洞的闭合方式，三向压应力是修复空洞缺陷的最佳应力状态。
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