卸载时摩擦力的作用方向会发生改变，并抑制裂隙面之间滑移变形的恢复，使岩样内部产生残余变形。
In unloading process the direction of friction will convert to prevent restoration of shear deformation between the fissures, which results in the residual deformation in the specimen.
模拟结果表明，壁面滑移对微小通道的熔体充模流动具有明显的促进作用。
The simulation result indicates that wall slip can advance melt filling in micro-channel obviously.
模拟结果表明，壁面滑移对微小通道的熔体充模流动具有明显的促进作用。
The simulation result indicates that wall slip can advance melt filling in micro-channel obviously.
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