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hydro-percussive tools
释义
hydro-percussive tools
Encyclopedia
理学
孔内钻具
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hydro-percussive tools
液动冲击器
以钻探冲洗液为动力介质,利用高压液流能量及动态水击能量产生连续冲击载荷的孔底动力机具。又称液动潜孔锤。
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elementary kernel
elementary Kleinian group
elementary length
elementary logic
elementary mathematics
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elementary matrix operation
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elementary method of integration
elementary mode analysis,EMA
elementary net system
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elementary number theory
Elementary on Astronomy
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