“production drilling rigs”的概念、定义、翻译、参考文献-科学参考

单词	production drilling rigs
释义	production drilling rigs Encyclopedia 工学〔地下穿孔设备〕释 production drilling rigs地下采矿凿岩台车支承、推进和移动凿岩机进行地下矿体钻凿炮孔，并能够自动行走的凿岩设备。又称地下采矿钻孔台车。是地下采矿采用凿岩爆破法施工的一种凿岩设备。
随便看	principal square root principals' research leadership principal state model principal state of polarization principal's teaching leadership principal strain principal subgroup principal subgroup series principal submatrix principal submodule principal subspace principal surface principal symbol principal symbol sequence principal system principal tangent principal tangent bundle principal telescope principal term principal theorem principal trace principal translation principal two-sided ideal principal type principal ultrafilter

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