“keyseat reamer”的概念、定义、翻译、参考文献-科学参考

单词	keyseat reamer
释义	keyseat reamer Encyclopedia 工学井下工具释 keyseat reamer键槽扩大器连接于钻铤上方，用于破坏井身键槽，使钻铤免于键槽卡钻的装置。又称键槽破坏器。
随便看	primary yield primary yields primary yolk sac primase Primate primate primate city Primates primates for experimental use primates origins primatology Primavera prime prime 3 manifold prime 3-manifold prime algebraic number prime amplifier prime arithmetic progression prime array prime attribute prime Banach space prime base prime characteristic prime circle prime cluster

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