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horizontal directional drilling
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horizontal directional drilling
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horizontal directional drilling
水平定向钻
将一个可调向操控的钻头连接在钻杆组的端部,用于地下水平定向钻孔的机具。是在不开挖地表面条件下,铺设多种地下公用设施(管道、电缆等)的施工设备,广泛用于供水、电力、电信、天然气、煤气和石油等管线铺设施工中。
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Multidimensional Definition Theory
multidimensional determinant
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multidimensional dispersion relation
multidimensional distribution
multidimensional distribution function
multidimensional domain
multidimensional ellipsoid
multi-dimensional fabric reinforcements
multi dimensional fluorescence spectrum
multi-dimensional fluorescence spectrum
multidimensional function
multidimensional generalization
multidimensional geometry
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multidimensional integral equation
multidimensional integral operator
multidimensional integral transform
multidimensional interval
multidimensional item response theory
multidimensional knot
multidimensional logarithmic residue
multidimensional manifold
multidimensional mapping
multidimensional model
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更新时间:2026/10/2 21:44:45