“hydraulic mining of placer”的概念、定义、翻译、参考文献-科学参考

单词	hydraulic mining of placer
释义	hydraulic mining of placer Encyclopedia 工学海滨砂矿开采释 hydraulic mining of placer砂矿露天水力开采用水枪冲采砂矿，并用加压运输或自流运输的方式进行矿石运输的开采方法。
随便看	principal components analysis principal component transformation principal computable enumeration principal congruence principal congruence relation principal congruence subgroup principal conjecture principal conjunctive normal form principal connex principal convergent principal coordinates of neighbour matrics principal crossed homomorphism principal curvature principal curve principal curves principal deformation principal determinant principal diagonal principal diameter principal dielectric axes principal direction principal direction of curvature principal discrete series principal disjunctive normal form principal distribution parameter

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