“rotary drilling rig”的概念、定义、翻译、参考文献-科学参考

单词	rotary drilling rig
释义	rotary drilling rig Encyclopedia 工学探矿机械释 rotary drilling rig回转钻机靠回转器或孔底动力机具转动钻头破碎孔底岩石的钻机。工学桩工机械释 rotary drilling rig旋挖钻孔机用于取土钻孔灌注桩施工的成孔机械。
随便看	improper singularity improper subalgebra improper subclass improper subgraph improper subgroup improper submodule improper subobject improper subset improper subspace improper symbol improper symmetry operation improper transformation impropertransposition improper valuation improv comedy improved artificial whiskers improved confinement mode improved finite element improved grassland improved Lorentz-Savona industrial evolution model Improved Lunar Ephemeris improved opera costumes improved polygon method improved seed subsidy improved triploid hybrids derived from female improvedCarassius auratus red var. x male improvedtetraploid hybrids of Carassius auratus red var. x Cyprinus carpio

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