分析了丝杠冷滚打过程中金属的流向，验证了金属流动最小阻力定律。
Metal flow of lead screw cold roll-beating process is analyzed, and metal flow's law of minimum resistance is verified.
提出了前兆应力波扩展与传播的最小阻力或最短波径定律以及地应力波传播的概略模型。
The law of least resistance or shortest path of spread of stress wave as well as general propagation model of stress wave are given.
提出了前兆应力波扩展与传播的最小阻力或最短波径定律以及地应力波传播的概略模型。
The law of least resistance or shortest path of spread of stress wave as well as general propagation model of stress wave are given.
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