“reciprocating drill”的概念、定义、翻译、参考文献-科学参考

单词	reciprocating drill
释义	reciprocating drill [ri`sip·rǝ´kād·iŋ `dril] See <<piston drill>>
随便看	surge drum surge electrode current surge generator surge header surge impedance surge line surge protector surgery surge stress surge suppressor surge tank surgical needle surging surging breaker surging glacier surjection surjective mapping suroet surprint sursassite surveillance surveillance approach surveillance radar surveillance satellite survey

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