The simulated results show that there are four kinds of breaking patterns of rock which are related to the confining pressures and cutter spacings under the action of TBM cutters.

仿真结果表明：TBM刀具作用下岩石存在四种基本的破碎模式，它们的出现与围压以及刀间距有关；

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Unfortunately, the GM case, and others like it, reflects the reality that most managers become enamored with their own strategies and have trouble breaking free of their tried and true patterns.

FORBES: To start the year: Fire Yourself!