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

单词	pneumatic drilling
释义	pneumatic drilling [nu̇`mad·ik `dril·iŋ] ^{MECHANICAL ENGINEERING} Drilling a hole when using air or gas in lieu of conventional drilling fluid as the circulating medium; an adaptation of rotary drilling.
随便看	fixed disk fixed echo fixed-electrode method fixed emplacement fixed end fixed-end beam fixed-end column fixed end moment fixed-feed grinding fixed field fixed-field accelerator fixed-field method fixed fin fixed-focus lens fixed form coding fixed gun fixed-head disk fixed inductor fixed ion fixed-length field fixed-length operation fixed-length record fixed-level chart fixed light fixed linkage system

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