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冲击式冻土开挖机械斗齿结构优化研究
学位论文
硕士, 兰州: 兰州大学, 2015
Authors:
李蒙蒙
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Submit date：2019/01/18
冻土力学
机械开挖
冻土切削
冻土破碎
振动与冲击
