“raise-boring method”的概念、定义、翻译、参考文献-科学参考

单词	raise-boring method
释义	raise-boring method Encyclopedia 工学天井掘进释 raise-boring method反井钻机法采用反井钻机先打导向孔，再从下而上用钻井刷扩至要求断面的完全机械破岩的天井掘进的施工方法。
随便看	narrow band semiconductor narrow-band semiconductor narrowband signal narrow-band width narrow-beam radiation narrow body aircraft narrow channel effect narrow class narrow convergence narrow currency growth narrow-external focus narrow fabric weaving narrow gap semiconductor narrow-gap semiconductor narrow gap welding narrow gorge Narrow-headed vole narrow heritability narrow ideal class narrow illumination narrowing narrow-internal focus narrow lane observation narrow-line radio galaxy narrow-line region

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