“rock bit for water well drilling rig”的概念、定义、翻译、参考文献-科学参考

单词	rock bit for water well drilling rig
释义	rock bit for water well drilling rig 打水井机凿岩钻头
随便看	utilizing advanced technology utilizing meteorological date ut infra utmost utmost good faith Utopia utopia U-trap utrasul utricle utricular utriculitis utriculoplasty utriculosaccular utriculo-saccular duct utriculo-sacculary canal utriculus utriculus masculinus utriculus prostaticus utriculus urethralis utriculus virilis ut supra utterf (尤指行使伪币) uttering false coin uttering forged document

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